* Permisable values forthread Class 3G#DescriptionValue (Inch)Value (mm)dMajor Diameter0.99 - 125.146 - 25.4d2Pitch Diameter0.8849 - 0.89422.476 - 22.708d1Minor Diameter0.7664 - 0.7819.467 - 19.812PVaration of Pitch (+/-)0.00080.02αVaration of 14.5° anngle (+/-)0.45°* Back to Thread Class Selection 1 - 5 ACME 4G (External)* Permisable values forthread Class 4G#DescriptionValue (Inch)Value (mm)dMajor Diameter0.99 - 125.146 - 25.4d2Pitch Diameter0.8895 - 0.89622.593 - 22.758d1Minor Diameter0.7703 - 0.7819.566 - 19.812PVaration of Pitch (+/-)0.00080.02αVaration of 14.5° anngle (+/-)0.45°* Back to Thread Class Selection 1 - 5 ACME 2C (External)* Permisable values forthread Class 2C#DescriptionValue (Inch)Value (mm)dMajor Diameter0.9965 - 125.311 - 25.4d2Pitch Diameter0.8726 - 0.89222.164 - 22.657d1Minor Diameter0.7509 - 0.7819.073 - 19.812PVaration of Pitch (+/-)0.00080.02αVaration of 14.5° anngle (+/-)0.45°* Back to Thread Class Selection 1 - 5 ACME 3C (External)* Permisable values forthread Class 3C#DescriptionValue (Inch)Value (mm)dMajor Diameter0.9985 - 125.362 - 25.4d2Pitch Diameter0.8849 - 0.89422.476 - 22.708d1Minor Diameter0.7664 - 0.7819.467 - 19.812PVaration of Pitch (+/-)0.00080.02αVaration of 14.5° anngle (+/-)0.45°* Back to Thread Class Selection 1 - 5 ACME 4C (External)* Permisable values forthread Class 4C#DescriptionValue (Inch)Value (mm)dMajor Diameter0.999 - 125.375 - 25.4d2Pitch Diameter0.8895 - 0.89622.593 - 22.758d1Minor Diameter0.7703 - 0.7819.566 - 19.812PVaration of Pitch (+/-)0.00080.02αVaration of 14.5° anngle (+/-)0.45°* Back to Thread Class Selection 1 - 5 ACME 2G ( Internal)* Permisable values for thread Class 2G#DescriptionValue ()Value ()DMajor Diameter1.02 - 1.0425.908 - 26.416D2Pitch Diameter0.9 - 0.919422.86 - 23.353D1Minor Diameter0.8 - 0.8120.32 - 20.574PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 3G ( Internal)* Permisable values for thread Class 3G#DescriptionValue ()Value ()DMajor Diameter1.02 - 1.0425.908 - 26.416D2Pitch Diameter0.9 - 0.909122.86 - 23.091D1Minor Diameter0.8 - 0.8120.32 - 20.574PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 4G ( Internal)* Permisable values for thread Class 4G#DescriptionValue ()Value ()DMajor Diameter1.02 - 1.0425.908 - 26.416D2Pitch Diameter0.9 - 0.906522.86 - 23.025D1Minor Diameter0.8 - 0.8120.32 - 20.574PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 2C ( Internal)* Permisable values for thread Class 2C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.004525.425 - 25.514D2Pitch Diameter0.9 - 0.919422.86 - 23.353D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 3C ( Internal)* Permisable values for thread Class 3C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.004525.425 - 25.514D2Pitch Diameter0.9 - 0.909122.86 - 23.091D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 4C ( Internal)* Permisable values for thread Class 4C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.00325.425 - 25.476D2Pitch Diameter0.9 - 0.906522.86 - 23.025D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection Over Wire Measurements for 1-5 ACME* OverWire is a measuring method to obatin the pitch diameter of threads. It is mostly used when a manufacturer does not have a Go/Nogo gauge for a thread. You can learn more about it hereInchmmPermissible Wire Diameter Range0.09813 - 0.154942.4924 - 3.9353Ideal Wire Diameter0.103292.6236Possible WiresFrom Standard Sets* 0.10497* 0.11547* 0.1283* 0.14434* 2.5981* 2.8868* 3.1754* 3.4641Once you know your wire diameter, you need to find out what is the premissable Measurement for your pitch diameter (Depending on the class). Use our Over Wire Calculator to find out!Our Top Picks

* Permisable values for thread Class 4G#DescriptionValue ()Value ()DMajor Diameter1.02 - 1.0425.908 - 26.416D2Pitch Diameter0.9 - 0.906522.86 - 23.025D1Minor Diameter0.8 - 0.8120.32 - 20.574PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 2C ( Internal)* Permisable values for thread Class 2C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.004525.425 - 25.514D2Pitch Diameter0.9 - 0.919422.86 - 23.353D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 3C ( Internal)* Permisable values for thread Class 3C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.004525.425 - 25.514D2Pitch Diameter0.9 - 0.909122.86 - 23.091D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 4C ( Internal)* Permisable values for thread Class 4C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.00325.425 - 25.476D2Pitch Diameter0.9 - 0.906522.86 - 23.025D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection Over Wire Measurements for 1-5 ACME* OverWire is a measuring method to obatin the pitch diameter of threads. It is mostly used when a manufacturer does not have a Go/Nogo gauge for a thread. You can learn more about it hereInchmmPermissible Wire Diameter Range0.09813 - 0.154942.4924 - 3.9353Ideal Wire Diameter0.103292.6236Possible WiresFrom Standard Sets* 0.10497* 0.11547* 0.1283* 0.14434* 2.5981* 2.8868* 3.1754* 3.4641Once you know your wire diameter, you need to find out what is the premissable Measurement for your pitch diameter (Depending on the class). Use our Over Wire Calculator to find out!Our Top Picks

* Back to Thread Class Selection 1 - 5 ACME 4C ( Internal)* Permisable values for thread Class 4C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.00325.425 - 25.476D2Pitch Diameter0.9 - 0.906522.86 - 23.025D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection Over Wire Measurements for 1-5 ACME* OverWire is a measuring method to obatin the pitch diameter of threads. It is mostly used when a manufacturer does not have a Go/Nogo gauge for a thread. You can learn more about it hereInchmmPermissible Wire Diameter Range0.09813 - 0.154942.4924 - 3.9353Ideal Wire Diameter0.103292.6236Possible WiresFrom Standard Sets* 0.10497* 0.11547* 0.1283* 0.14434* 2.5981* 2.8868* 3.1754* 3.4641Once you know your wire diameter, you need to find out what is the premissable Measurement for your pitch diameter (Depending on the class). Use our Over Wire Calculator to find out!Our Top Picks

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* Permisable values forthread Class 2C#DescriptionValue (Inch)Value (mm)dMajor Diameter0.9965 - 125.311 - 25.4d2Pitch Diameter0.8726 - 0.89222.164 - 22.657d1Minor Diameter0.7509 - 0.7819.073 - 19.812PVaration of Pitch (+/-)0.00080.02αVaration of 14.5° anngle (+/-)0.45°* Back to Thread Class Selection 1 - 5 ACME 3C (External)* Permisable values forthread Class 3C#DescriptionValue (Inch)Value (mm)dMajor Diameter0.9985 - 125.362 - 25.4d2Pitch Diameter0.8849 - 0.89422.476 - 22.708d1Minor Diameter0.7664 - 0.7819.467 - 19.812PVaration of Pitch (+/-)0.00080.02αVaration of 14.5° anngle (+/-)0.45°* Back to Thread Class Selection 1 - 5 ACME 4C (External)* Permisable values forthread Class 4C#DescriptionValue (Inch)Value (mm)dMajor Diameter0.999 - 125.375 - 25.4d2Pitch Diameter0.8895 - 0.89622.593 - 22.758d1Minor Diameter0.7703 - 0.7819.566 - 19.812PVaration of Pitch (+/-)0.00080.02αVaration of 14.5° anngle (+/-)0.45°* Back to Thread Class Selection 1 - 5 ACME 2G ( Internal)* Permisable values for thread Class 2G#DescriptionValue ()Value ()DMajor Diameter1.02 - 1.0425.908 - 26.416D2Pitch Diameter0.9 - 0.919422.86 - 23.353D1Minor Diameter0.8 - 0.8120.32 - 20.574PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 3G ( Internal)* Permisable values for thread Class 3G#DescriptionValue ()Value ()DMajor Diameter1.02 - 1.0425.908 - 26.416D2Pitch Diameter0.9 - 0.909122.86 - 23.091D1Minor Diameter0.8 - 0.8120.32 - 20.574PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 4G ( Internal)* Permisable values for thread Class 4G#DescriptionValue ()Value ()DMajor Diameter1.02 - 1.0425.908 - 26.416D2Pitch Diameter0.9 - 0.906522.86 - 23.025D1Minor Diameter0.8 - 0.8120.32 - 20.574PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 2C ( Internal)* Permisable values for thread Class 2C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.004525.425 - 25.514D2Pitch Diameter0.9 - 0.919422.86 - 23.353D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 3C ( Internal)* Permisable values for thread Class 3C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.004525.425 - 25.514D2Pitch Diameter0.9 - 0.909122.86 - 23.091D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 4C ( Internal)* Permisable values for thread Class 4C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.00325.425 - 25.476D2Pitch Diameter0.9 - 0.906522.86 - 23.025D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection Over Wire Measurements for 1-5 ACME* OverWire is a measuring method to obatin the pitch diameter of threads. It is mostly used when a manufacturer does not have a Go/Nogo gauge for a thread. You can learn more about it hereInchmmPermissible Wire Diameter Range0.09813 - 0.154942.4924 - 3.9353Ideal Wire Diameter0.103292.6236Possible WiresFrom Standard Sets* 0.10497* 0.11547* 0.1283* 0.14434* 2.5981* 2.8868* 3.1754* 3.4641Once you know your wire diameter, you need to find out what is the premissable Measurement for your pitch diameter (Depending on the class). Use our Over Wire Calculator to find out!Our Top Picks

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* Permisable values for thread Class 3G#DescriptionValue ()Value ()DMajor Diameter1.02 - 1.0425.908 - 26.416D2Pitch Diameter0.9 - 0.909122.86 - 23.091D1Minor Diameter0.8 - 0.8120.32 - 20.574PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 4G ( Internal)* Permisable values for thread Class 4G#DescriptionValue ()Value ()DMajor Diameter1.02 - 1.0425.908 - 26.416D2Pitch Diameter0.9 - 0.906522.86 - 23.025D1Minor Diameter0.8 - 0.8120.32 - 20.574PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 2C ( Internal)* Permisable values for thread Class 2C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.004525.425 - 25.514D2Pitch Diameter0.9 - 0.919422.86 - 23.353D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 3C ( Internal)* Permisable values for thread Class 3C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.004525.425 - 25.514D2Pitch Diameter0.9 - 0.909122.86 - 23.091D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 4C ( Internal)* Permisable values for thread Class 4C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.00325.425 - 25.476D2Pitch Diameter0.9 - 0.906522.86 - 23.025D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection Over Wire Measurements for 1-5 ACME* OverWire is a measuring method to obatin the pitch diameter of threads. It is mostly used when a manufacturer does not have a Go/Nogo gauge for a thread. You can learn more about it hereInchmmPermissible Wire Diameter Range0.09813 - 0.154942.4924 - 3.9353Ideal Wire Diameter0.103292.6236Possible WiresFrom Standard Sets* 0.10497* 0.11547* 0.1283* 0.14434* 2.5981* 2.8868* 3.1754* 3.4641Once you know your wire diameter, you need to find out what is the premissable Measurement for your pitch diameter (Depending on the class). Use our Over Wire Calculator to find out!Our Top Picks

* Back to Thread Class Selection 1 - 5 ACME 3G (External)* Permisable values forthread Class 3G#DescriptionValue (Inch)Value (mm)dMajor Diameter0.99 - 125.146 - 25.4d2Pitch Diameter0.8849 - 0.89422.476 - 22.708d1Minor Diameter0.7664 - 0.7819.467 - 19.812PVaration of Pitch (+/-)0.00080.02αVaration of 14.5° anngle (+/-)0.45°* Back to Thread Class Selection 1 - 5 ACME 4G (External)* Permisable values forthread Class 4G#DescriptionValue (Inch)Value (mm)dMajor Diameter0.99 - 125.146 - 25.4d2Pitch Diameter0.8895 - 0.89622.593 - 22.758d1Minor Diameter0.7703 - 0.7819.566 - 19.812PVaration of Pitch (+/-)0.00080.02αVaration of 14.5° anngle (+/-)0.45°* Back to Thread Class Selection 1 - 5 ACME 2C (External)* Permisable values forthread Class 2C#DescriptionValue (Inch)Value (mm)dMajor Diameter0.9965 - 125.311 - 25.4d2Pitch Diameter0.8726 - 0.89222.164 - 22.657d1Minor Diameter0.7509 - 0.7819.073 - 19.812PVaration of Pitch (+/-)0.00080.02αVaration of 14.5° anngle (+/-)0.45°* Back to Thread Class Selection 1 - 5 ACME 3C (External)* Permisable values forthread Class 3C#DescriptionValue (Inch)Value (mm)dMajor Diameter0.9985 - 125.362 - 25.4d2Pitch Diameter0.8849 - 0.89422.476 - 22.708d1Minor Diameter0.7664 - 0.7819.467 - 19.812PVaration of Pitch (+/-)0.00080.02αVaration of 14.5° anngle (+/-)0.45°* Back to Thread Class Selection 1 - 5 ACME 4C (External)* Permisable values forthread Class 4C#DescriptionValue (Inch)Value (mm)dMajor Diameter0.999 - 125.375 - 25.4d2Pitch Diameter0.8895 - 0.89622.593 - 22.758d1Minor Diameter0.7703 - 0.7819.566 - 19.812PVaration of Pitch (+/-)0.00080.02αVaration of 14.5° anngle (+/-)0.45°* Back to Thread Class Selection 1 - 5 ACME 2G ( Internal)* Permisable values for thread Class 2G#DescriptionValue ()Value ()DMajor Diameter1.02 - 1.0425.908 - 26.416D2Pitch Diameter0.9 - 0.919422.86 - 23.353D1Minor Diameter0.8 - 0.8120.32 - 20.574PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 3G ( Internal)* Permisable values for thread Class 3G#DescriptionValue ()Value ()DMajor Diameter1.02 - 1.0425.908 - 26.416D2Pitch Diameter0.9 - 0.909122.86 - 23.091D1Minor Diameter0.8 - 0.8120.32 - 20.574PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 4G ( Internal)* Permisable values for thread Class 4G#DescriptionValue ()Value ()DMajor Diameter1.02 - 1.0425.908 - 26.416D2Pitch Diameter0.9 - 0.906522.86 - 23.025D1Minor Diameter0.8 - 0.8120.32 - 20.574PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 2C ( Internal)* Permisable values for thread Class 2C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.004525.425 - 25.514D2Pitch Diameter0.9 - 0.919422.86 - 23.353D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 3C ( Internal)* Permisable values for thread Class 3C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.004525.425 - 25.514D2Pitch Diameter0.9 - 0.909122.86 - 23.091D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 4C ( Internal)* Permisable values for thread Class 4C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.00325.425 - 25.476D2Pitch Diameter0.9 - 0.906522.86 - 23.025D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection Over Wire Measurements for 1-5 ACME* OverWire is a measuring method to obatin the pitch diameter of threads. It is mostly used when a manufacturer does not have a Go/Nogo gauge for a thread. You can learn more about it hereInchmmPermissible Wire Diameter Range0.09813 - 0.154942.4924 - 3.9353Ideal Wire Diameter0.103292.6236Possible WiresFrom Standard Sets* 0.10497* 0.11547* 0.1283* 0.14434* 2.5981* 2.8868* 3.1754* 3.4641Once you know your wire diameter, you need to find out what is the premissable Measurement for your pitch diameter (Depending on the class). Use our Over Wire Calculator to find out!Our Top Picks

* Back to Thread Class Selection 1 - 5 ACME 4G (External)* Permisable values forthread Class 4G#DescriptionValue (Inch)Value (mm)dMajor Diameter0.99 - 125.146 - 25.4d2Pitch Diameter0.8895 - 0.89622.593 - 22.758d1Minor Diameter0.7703 - 0.7819.566 - 19.812PVaration of Pitch (+/-)0.00080.02αVaration of 14.5° anngle (+/-)0.45°* Back to Thread Class Selection 1 - 5 ACME 2C (External)* Permisable values forthread Class 2C#DescriptionValue (Inch)Value (mm)dMajor Diameter0.9965 - 125.311 - 25.4d2Pitch Diameter0.8726 - 0.89222.164 - 22.657d1Minor Diameter0.7509 - 0.7819.073 - 19.812PVaration of Pitch (+/-)0.00080.02αVaration of 14.5° anngle (+/-)0.45°* Back to Thread Class Selection 1 - 5 ACME 3C (External)* Permisable values forthread Class 3C#DescriptionValue (Inch)Value (mm)dMajor Diameter0.9985 - 125.362 - 25.4d2Pitch Diameter0.8849 - 0.89422.476 - 22.708d1Minor Diameter0.7664 - 0.7819.467 - 19.812PVaration of Pitch (+/-)0.00080.02αVaration of 14.5° anngle (+/-)0.45°* Back to Thread Class Selection 1 - 5 ACME 4C (External)* Permisable values forthread Class 4C#DescriptionValue (Inch)Value (mm)dMajor Diameter0.999 - 125.375 - 25.4d2Pitch Diameter0.8895 - 0.89622.593 - 22.758d1Minor Diameter0.7703 - 0.7819.566 - 19.812PVaration of Pitch (+/-)0.00080.02αVaration of 14.5° anngle (+/-)0.45°* Back to Thread Class Selection 1 - 5 ACME 2G ( Internal)* Permisable values for thread Class 2G#DescriptionValue ()Value ()DMajor Diameter1.02 - 1.0425.908 - 26.416D2Pitch Diameter0.9 - 0.919422.86 - 23.353D1Minor Diameter0.8 - 0.8120.32 - 20.574PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 3G ( Internal)* Permisable values for thread Class 3G#DescriptionValue ()Value ()DMajor Diameter1.02 - 1.0425.908 - 26.416D2Pitch Diameter0.9 - 0.909122.86 - 23.091D1Minor Diameter0.8 - 0.8120.32 - 20.574PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 4G ( Internal)* Permisable values for thread Class 4G#DescriptionValue ()Value ()DMajor Diameter1.02 - 1.0425.908 - 26.416D2Pitch Diameter0.9 - 0.906522.86 - 23.025D1Minor Diameter0.8 - 0.8120.32 - 20.574PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 2C ( Internal)* Permisable values for thread Class 2C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.004525.425 - 25.514D2Pitch Diameter0.9 - 0.919422.86 - 23.353D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 3C ( Internal)* Permisable values for thread Class 3C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.004525.425 - 25.514D2Pitch Diameter0.9 - 0.909122.86 - 23.091D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 4C ( Internal)* Permisable values for thread Class 4C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.00325.425 - 25.476D2Pitch Diameter0.9 - 0.906522.86 - 23.025D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection Over Wire Measurements for 1-5 ACME* OverWire is a measuring method to obatin the pitch diameter of threads. It is mostly used when a manufacturer does not have a Go/Nogo gauge for a thread. You can learn more about it hereInchmmPermissible Wire Diameter Range0.09813 - 0.154942.4924 - 3.9353Ideal Wire Diameter0.103292.6236Possible WiresFrom Standard Sets* 0.10497* 0.11547* 0.1283* 0.14434* 2.5981* 2.8868* 3.1754* 3.4641Once you know your wire diameter, you need to find out what is the premissable Measurement for your pitch diameter (Depending on the class). Use our Over Wire Calculator to find out!Our Top Picks

* Permisable values for thread Class 3C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.004525.425 - 25.514D2Pitch Diameter0.9 - 0.909122.86 - 23.091D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 4C ( Internal)* Permisable values for thread Class 4C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.00325.425 - 25.476D2Pitch Diameter0.9 - 0.906522.86 - 23.025D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection Over Wire Measurements for 1-5 ACME* OverWire is a measuring method to obatin the pitch diameter of threads. It is mostly used when a manufacturer does not have a Go/Nogo gauge for a thread. You can learn more about it hereInchmmPermissible Wire Diameter Range0.09813 - 0.154942.4924 - 3.9353Ideal Wire Diameter0.103292.6236Possible WiresFrom Standard Sets* 0.10497* 0.11547* 0.1283* 0.14434* 2.5981* 2.8868* 3.1754* 3.4641Once you know your wire diameter, you need to find out what is the premissable Measurement for your pitch diameter (Depending on the class). Use our Over Wire Calculator to find out!Our Top Picks

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* Back to Thread Class Selection 1 - 5 ACME 2C ( Internal)* Permisable values for thread Class 2C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.004525.425 - 25.514D2Pitch Diameter0.9 - 0.919422.86 - 23.353D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 3C ( Internal)* Permisable values for thread Class 3C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.004525.425 - 25.514D2Pitch Diameter0.9 - 0.909122.86 - 23.091D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 4C ( Internal)* Permisable values for thread Class 4C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.00325.425 - 25.476D2Pitch Diameter0.9 - 0.906522.86 - 23.025D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection Over Wire Measurements for 1-5 ACME* OverWire is a measuring method to obatin the pitch diameter of threads. It is mostly used when a manufacturer does not have a Go/Nogo gauge for a thread. You can learn more about it hereInchmmPermissible Wire Diameter Range0.09813 - 0.154942.4924 - 3.9353Ideal Wire Diameter0.103292.6236Possible WiresFrom Standard Sets* 0.10497* 0.11547* 0.1283* 0.14434* 2.5981* 2.8868* 3.1754* 3.4641Once you know your wire diameter, you need to find out what is the premissable Measurement for your pitch diameter (Depending on the class). Use our Over Wire Calculator to find out!Our Top Picks

* Permisable values forthread Class 3C#DescriptionValue (Inch)Value (mm)dMajor Diameter0.9985 - 125.362 - 25.4d2Pitch Diameter0.8849 - 0.89422.476 - 22.708d1Minor Diameter0.7664 - 0.7819.467 - 19.812PVaration of Pitch (+/-)0.00080.02αVaration of 14.5° anngle (+/-)0.45°* Back to Thread Class Selection 1 - 5 ACME 4C (External)* Permisable values forthread Class 4C#DescriptionValue (Inch)Value (mm)dMajor Diameter0.999 - 125.375 - 25.4d2Pitch Diameter0.8895 - 0.89622.593 - 22.758d1Minor Diameter0.7703 - 0.7819.566 - 19.812PVaration of Pitch (+/-)0.00080.02αVaration of 14.5° anngle (+/-)0.45°* Back to Thread Class Selection 1 - 5 ACME 2G ( Internal)* Permisable values for thread Class 2G#DescriptionValue ()Value ()DMajor Diameter1.02 - 1.0425.908 - 26.416D2Pitch Diameter0.9 - 0.919422.86 - 23.353D1Minor Diameter0.8 - 0.8120.32 - 20.574PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 3G ( Internal)* Permisable values for thread Class 3G#DescriptionValue ()Value ()DMajor Diameter1.02 - 1.0425.908 - 26.416D2Pitch Diameter0.9 - 0.909122.86 - 23.091D1Minor Diameter0.8 - 0.8120.32 - 20.574PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 4G ( Internal)* Permisable values for thread Class 4G#DescriptionValue ()Value ()DMajor Diameter1.02 - 1.0425.908 - 26.416D2Pitch Diameter0.9 - 0.906522.86 - 23.025D1Minor Diameter0.8 - 0.8120.32 - 20.574PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 2C ( Internal)* Permisable values for thread Class 2C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.004525.425 - 25.514D2Pitch Diameter0.9 - 0.919422.86 - 23.353D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 3C ( Internal)* Permisable values for thread Class 3C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.004525.425 - 25.514D2Pitch Diameter0.9 - 0.909122.86 - 23.091D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 4C ( Internal)* Permisable values for thread Class 4C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.00325.425 - 25.476D2Pitch Diameter0.9 - 0.906522.86 - 23.025D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection Over Wire Measurements for 1-5 ACME* OverWire is a measuring method to obatin the pitch diameter of threads. It is mostly used when a manufacturer does not have a Go/Nogo gauge for a thread. You can learn more about it hereInchmmPermissible Wire Diameter Range0.09813 - 0.154942.4924 - 3.9353Ideal Wire Diameter0.103292.6236Possible WiresFrom Standard Sets* 0.10497* 0.11547* 0.1283* 0.14434* 2.5981* 2.8868* 3.1754* 3.4641Once you know your wire diameter, you need to find out what is the premissable Measurement for your pitch diameter (Depending on the class). Use our Over Wire Calculator to find out!Our Top Picks

* Permisable values forthread Class 2G#DescriptionValue (Inch)Value (mm)dMajor Diameter0.99 - 125.146 - 25.4d2Pitch Diameter0.8726 - 0.89222.164 - 22.657d1Minor Diameter0.7509 - 0.7819.073 - 19.812PVaration of Pitch (+/-)0.00080.02αVaration of 14.5° anngle (+/-)0.45°* Back to Thread Class Selection 1 - 5 ACME 3G (External)* Permisable values forthread Class 3G#DescriptionValue (Inch)Value (mm)dMajor Diameter0.99 - 125.146 - 25.4d2Pitch Diameter0.8849 - 0.89422.476 - 22.708d1Minor Diameter0.7664 - 0.7819.467 - 19.812PVaration of Pitch (+/-)0.00080.02αVaration of 14.5° anngle (+/-)0.45°* Back to Thread Class Selection 1 - 5 ACME 4G (External)* Permisable values forthread Class 4G#DescriptionValue (Inch)Value (mm)dMajor Diameter0.99 - 125.146 - 25.4d2Pitch Diameter0.8895 - 0.89622.593 - 22.758d1Minor Diameter0.7703 - 0.7819.566 - 19.812PVaration of Pitch (+/-)0.00080.02αVaration of 14.5° anngle (+/-)0.45°* Back to Thread Class Selection 1 - 5 ACME 2C (External)* Permisable values forthread Class 2C#DescriptionValue (Inch)Value (mm)dMajor Diameter0.9965 - 125.311 - 25.4d2Pitch Diameter0.8726 - 0.89222.164 - 22.657d1Minor Diameter0.7509 - 0.7819.073 - 19.812PVaration of Pitch (+/-)0.00080.02αVaration of 14.5° anngle (+/-)0.45°* Back to Thread Class Selection 1 - 5 ACME 3C (External)* Permisable values forthread Class 3C#DescriptionValue (Inch)Value (mm)dMajor Diameter0.9985 - 125.362 - 25.4d2Pitch Diameter0.8849 - 0.89422.476 - 22.708d1Minor Diameter0.7664 - 0.7819.467 - 19.812PVaration of Pitch (+/-)0.00080.02αVaration of 14.5° anngle (+/-)0.45°* Back to Thread Class Selection 1 - 5 ACME 4C (External)* Permisable values forthread Class 4C#DescriptionValue (Inch)Value (mm)dMajor Diameter0.999 - 125.375 - 25.4d2Pitch Diameter0.8895 - 0.89622.593 - 22.758d1Minor Diameter0.7703 - 0.7819.566 - 19.812PVaration of Pitch (+/-)0.00080.02αVaration of 14.5° anngle (+/-)0.45°* Back to Thread Class Selection 1 - 5 ACME 2G ( Internal)* Permisable values for thread Class 2G#DescriptionValue ()Value ()DMajor Diameter1.02 - 1.0425.908 - 26.416D2Pitch Diameter0.9 - 0.919422.86 - 23.353D1Minor Diameter0.8 - 0.8120.32 - 20.574PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 3G ( Internal)* Permisable values for thread Class 3G#DescriptionValue ()Value ()DMajor Diameter1.02 - 1.0425.908 - 26.416D2Pitch Diameter0.9 - 0.909122.86 - 23.091D1Minor Diameter0.8 - 0.8120.32 - 20.574PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 4G ( Internal)* Permisable values for thread Class 4G#DescriptionValue ()Value ()DMajor Diameter1.02 - 1.0425.908 - 26.416D2Pitch Diameter0.9 - 0.906522.86 - 23.025D1Minor Diameter0.8 - 0.8120.32 - 20.574PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 2C ( Internal)* Permisable values for thread Class 2C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.004525.425 - 25.514D2Pitch Diameter0.9 - 0.919422.86 - 23.353D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 3C ( Internal)* Permisable values for thread Class 3C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.004525.425 - 25.514D2Pitch Diameter0.9 - 0.909122.86 - 23.091D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 4C ( Internal)* Permisable values for thread Class 4C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.00325.425 - 25.476D2Pitch Diameter0.9 - 0.906522.86 - 23.025D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection Over Wire Measurements for 1-5 ACME* OverWire is a measuring method to obatin the pitch diameter of threads. It is mostly used when a manufacturer does not have a Go/Nogo gauge for a thread. You can learn more about it hereInchmmPermissible Wire Diameter Range0.09813 - 0.154942.4924 - 3.9353Ideal Wire Diameter0.103292.6236Possible WiresFrom Standard Sets* 0.10497* 0.11547* 0.1283* 0.14434* 2.5981* 2.8868* 3.1754* 3.4641Once you know your wire diameter, you need to find out what is the premissable Measurement for your pitch diameter (Depending on the class). Use our Over Wire Calculator to find out!Our Top Picks

* Permisable values for thread Class 4C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.00325.425 - 25.476D2Pitch Diameter0.9 - 0.906522.86 - 23.025D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection Over Wire Measurements for 1-5 ACME* OverWire is a measuring method to obatin the pitch diameter of threads. It is mostly used when a manufacturer does not have a Go/Nogo gauge for a thread. You can learn more about it hereInchmmPermissible Wire Diameter Range0.09813 - 0.154942.4924 - 3.9353Ideal Wire Diameter0.103292.6236Possible WiresFrom Standard Sets* 0.10497* 0.11547* 0.1283* 0.14434* 2.5981* 2.8868* 3.1754* 3.4641Once you know your wire diameter, you need to find out what is the premissable Measurement for your pitch diameter (Depending on the class). Use our Over Wire Calculator to find out!Our Top Picks

* Back to Thread Class Selection 1 - 5 ACME 2G ( Internal)* Permisable values for thread Class 2G#DescriptionValue ()Value ()DMajor Diameter1.02 - 1.0425.908 - 26.416D2Pitch Diameter0.9 - 0.919422.86 - 23.353D1Minor Diameter0.8 - 0.8120.32 - 20.574PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 3G ( Internal)* Permisable values for thread Class 3G#DescriptionValue ()Value ()DMajor Diameter1.02 - 1.0425.908 - 26.416D2Pitch Diameter0.9 - 0.909122.86 - 23.091D1Minor Diameter0.8 - 0.8120.32 - 20.574PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 4G ( Internal)* Permisable values for thread Class 4G#DescriptionValue ()Value ()DMajor Diameter1.02 - 1.0425.908 - 26.416D2Pitch Diameter0.9 - 0.906522.86 - 23.025D1Minor Diameter0.8 - 0.8120.32 - 20.574PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 2C ( Internal)* Permisable values for thread Class 2C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.004525.425 - 25.514D2Pitch Diameter0.9 - 0.919422.86 - 23.353D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 3C ( Internal)* Permisable values for thread Class 3C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.004525.425 - 25.514D2Pitch Diameter0.9 - 0.909122.86 - 23.091D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 4C ( Internal)* Permisable values for thread Class 4C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.00325.425 - 25.476D2Pitch Diameter0.9 - 0.906522.86 - 23.025D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection Over Wire Measurements for 1-5 ACME* OverWire is a measuring method to obatin the pitch diameter of threads. It is mostly used when a manufacturer does not have a Go/Nogo gauge for a thread. You can learn more about it hereInchmmPermissible Wire Diameter Range0.09813 - 0.154942.4924 - 3.9353Ideal Wire Diameter0.103292.6236Possible WiresFrom Standard Sets* 0.10497* 0.11547* 0.1283* 0.14434* 2.5981* 2.8868* 3.1754* 3.4641Once you know your wire diameter, you need to find out what is the premissable Measurement for your pitch diameter (Depending on the class). Use our Over Wire Calculator to find out!Our Top Picks

The alignment angle or the initial position is reached when flux linkage is at maximum and induced voltage at the minimum.In the below image firt plot is the flux linkage and the second plot is the induced voltage and the initial position is 7.5 deg.You can right click on the plot and add x-market to mark the position.

Acme thread

* Permisable values for thread Class 2C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.004525.425 - 25.514D2Pitch Diameter0.9 - 0.919422.86 - 23.353D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 3C ( Internal)* Permisable values for thread Class 3C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.004525.425 - 25.514D2Pitch Diameter0.9 - 0.909122.86 - 23.091D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 4C ( Internal)* Permisable values for thread Class 4C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.00325.425 - 25.476D2Pitch Diameter0.9 - 0.906522.86 - 23.025D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection Over Wire Measurements for 1-5 ACME* OverWire is a measuring method to obatin the pitch diameter of threads. It is mostly used when a manufacturer does not have a Go/Nogo gauge for a thread. You can learn more about it hereInchmmPermissible Wire Diameter Range0.09813 - 0.154942.4924 - 3.9353Ideal Wire Diameter0.103292.6236Possible WiresFrom Standard Sets* 0.10497* 0.11547* 0.1283* 0.14434* 2.5981* 2.8868* 3.1754* 3.4641Once you know your wire diameter, you need to find out what is the premissable Measurement for your pitch diameter (Depending on the class). Use our Over Wire Calculator to find out!Our Top Picks

I use double thread because (a) it's stronger and (b) I don't have to worry about the little tailey bit slipping out of the needle all the time.

When it comes to High Speed Steel Drill Bit Sets, you can count on Grainger. Supplies and solutions for every industry, plus easy ordering, fast delivery ...

The rotor's initial position is set to such a position that the initial flux linkage of the phase-A winding is at its negative maximum value.

* Back to Thread Class Selection 1 - 5 ACME 2C (External)* Permisable values forthread Class 2C#DescriptionValue (Inch)Value (mm)dMajor Diameter0.9965 - 125.311 - 25.4d2Pitch Diameter0.8726 - 0.89222.164 - 22.657d1Minor Diameter0.7509 - 0.7819.073 - 19.812PVaration of Pitch (+/-)0.00080.02αVaration of 14.5° anngle (+/-)0.45°* Back to Thread Class Selection 1 - 5 ACME 3C (External)* Permisable values forthread Class 3C#DescriptionValue (Inch)Value (mm)dMajor Diameter0.9985 - 125.362 - 25.4d2Pitch Diameter0.8849 - 0.89422.476 - 22.708d1Minor Diameter0.7664 - 0.7819.467 - 19.812PVaration of Pitch (+/-)0.00080.02αVaration of 14.5° anngle (+/-)0.45°* Back to Thread Class Selection 1 - 5 ACME 4C (External)* Permisable values forthread Class 4C#DescriptionValue (Inch)Value (mm)dMajor Diameter0.999 - 125.375 - 25.4d2Pitch Diameter0.8895 - 0.89622.593 - 22.758d1Minor Diameter0.7703 - 0.7819.566 - 19.812PVaration of Pitch (+/-)0.00080.02αVaration of 14.5° anngle (+/-)0.45°* Back to Thread Class Selection 1 - 5 ACME 2G ( Internal)* Permisable values for thread Class 2G#DescriptionValue ()Value ()DMajor Diameter1.02 - 1.0425.908 - 26.416D2Pitch Diameter0.9 - 0.919422.86 - 23.353D1Minor Diameter0.8 - 0.8120.32 - 20.574PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 3G ( Internal)* Permisable values for thread Class 3G#DescriptionValue ()Value ()DMajor Diameter1.02 - 1.0425.908 - 26.416D2Pitch Diameter0.9 - 0.909122.86 - 23.091D1Minor Diameter0.8 - 0.8120.32 - 20.574PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 4G ( Internal)* Permisable values for thread Class 4G#DescriptionValue ()Value ()DMajor Diameter1.02 - 1.0425.908 - 26.416D2Pitch Diameter0.9 - 0.906522.86 - 23.025D1Minor Diameter0.8 - 0.8120.32 - 20.574PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 2C ( Internal)* Permisable values for thread Class 2C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.004525.425 - 25.514D2Pitch Diameter0.9 - 0.919422.86 - 23.353D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 3C ( Internal)* Permisable values for thread Class 3C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.004525.425 - 25.514D2Pitch Diameter0.9 - 0.909122.86 - 23.091D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 4C ( Internal)* Permisable values for thread Class 4C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.00325.425 - 25.476D2Pitch Diameter0.9 - 0.906522.86 - 23.025D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection Over Wire Measurements for 1-5 ACME* OverWire is a measuring method to obatin the pitch diameter of threads. It is mostly used when a manufacturer does not have a Go/Nogo gauge for a thread. You can learn more about it hereInchmmPermissible Wire Diameter Range0.09813 - 0.154942.4924 - 3.9353Ideal Wire Diameter0.103292.6236Possible WiresFrom Standard Sets* 0.10497* 0.11547* 0.1283* 0.14434* 2.5981* 2.8868* 3.1754* 3.4641Once you know your wire diameter, you need to find out what is the premissable Measurement for your pitch diameter (Depending on the class). Use our Over Wire Calculator to find out!Our Top Picks

* Back to Thread Class Selection 1 - 5 ACME 3C ( Internal)* Permisable values for thread Class 3C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.004525.425 - 25.514D2Pitch Diameter0.9 - 0.909122.86 - 23.091D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 4C ( Internal)* Permisable values for thread Class 4C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.00325.425 - 25.476D2Pitch Diameter0.9 - 0.906522.86 - 23.025D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection Over Wire Measurements for 1-5 ACME* OverWire is a measuring method to obatin the pitch diameter of threads. It is mostly used when a manufacturer does not have a Go/Nogo gauge for a thread. You can learn more about it hereInchmmPermissible Wire Diameter Range0.09813 - 0.154942.4924 - 3.9353Ideal Wire Diameter0.103292.6236Possible WiresFrom Standard Sets* 0.10497* 0.11547* 0.1283* 0.14434* 2.5981* 2.8868* 3.1754* 3.4641Once you know your wire diameter, you need to find out what is the premissable Measurement for your pitch diameter (Depending on the class). Use our Over Wire Calculator to find out!Our Top Picks

* Back to Thread Class Selection 1 - 5 ACME 4C (External)* Permisable values forthread Class 4C#DescriptionValue (Inch)Value (mm)dMajor Diameter0.999 - 125.375 - 25.4d2Pitch Diameter0.8895 - 0.89622.593 - 22.758d1Minor Diameter0.7703 - 0.7819.566 - 19.812PVaration of Pitch (+/-)0.00080.02αVaration of 14.5° anngle (+/-)0.45°* Back to Thread Class Selection 1 - 5 ACME 2G ( Internal)* Permisable values for thread Class 2G#DescriptionValue ()Value ()DMajor Diameter1.02 - 1.0425.908 - 26.416D2Pitch Diameter0.9 - 0.919422.86 - 23.353D1Minor Diameter0.8 - 0.8120.32 - 20.574PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 3G ( Internal)* Permisable values for thread Class 3G#DescriptionValue ()Value ()DMajor Diameter1.02 - 1.0425.908 - 26.416D2Pitch Diameter0.9 - 0.909122.86 - 23.091D1Minor Diameter0.8 - 0.8120.32 - 20.574PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 4G ( Internal)* Permisable values for thread Class 4G#DescriptionValue ()Value ()DMajor Diameter1.02 - 1.0425.908 - 26.416D2Pitch Diameter0.9 - 0.906522.86 - 23.025D1Minor Diameter0.8 - 0.8120.32 - 20.574PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 2C ( Internal)* Permisable values for thread Class 2C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.004525.425 - 25.514D2Pitch Diameter0.9 - 0.919422.86 - 23.353D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 3C ( Internal)* Permisable values for thread Class 3C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.004525.425 - 25.514D2Pitch Diameter0.9 - 0.909122.86 - 23.091D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 4C ( Internal)* Permisable values for thread Class 4C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.00325.425 - 25.476D2Pitch Diameter0.9 - 0.906522.86 - 23.025D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection Over Wire Measurements for 1-5 ACME* OverWire is a measuring method to obatin the pitch diameter of threads. It is mostly used when a manufacturer does not have a Go/Nogo gauge for a thread. You can learn more about it hereInchmmPermissible Wire Diameter Range0.09813 - 0.154942.4924 - 3.9353Ideal Wire Diameter0.103292.6236Possible WiresFrom Standard Sets* 0.10497* 0.11547* 0.1283* 0.14434* 2.5981* 2.8868* 3.1754* 3.4641Once you know your wire diameter, you need to find out what is the premissable Measurement for your pitch diameter (Depending on the class). Use our Over Wire Calculator to find out!Our Top Picks

Plastic ... A Vermont American tap handle works great for a reamer handle when doing it buy hand. Other maker's handle's don't open big enough.

* Permisable values for thread Class 2G#DescriptionValue ()Value ()DMajor Diameter1.02 - 1.0425.908 - 26.416D2Pitch Diameter0.9 - 0.919422.86 - 23.353D1Minor Diameter0.8 - 0.8120.32 - 20.574PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 3G ( Internal)* Permisable values for thread Class 3G#DescriptionValue ()Value ()DMajor Diameter1.02 - 1.0425.908 - 26.416D2Pitch Diameter0.9 - 0.909122.86 - 23.091D1Minor Diameter0.8 - 0.8120.32 - 20.574PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 4G ( Internal)* Permisable values for thread Class 4G#DescriptionValue ()Value ()DMajor Diameter1.02 - 1.0425.908 - 26.416D2Pitch Diameter0.9 - 0.906522.86 - 23.025D1Minor Diameter0.8 - 0.8120.32 - 20.574PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 2C ( Internal)* Permisable values for thread Class 2C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.004525.425 - 25.514D2Pitch Diameter0.9 - 0.919422.86 - 23.353D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 3C ( Internal)* Permisable values for thread Class 3C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.004525.425 - 25.514D2Pitch Diameter0.9 - 0.909122.86 - 23.091D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 4C ( Internal)* Permisable values for thread Class 4C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.00325.425 - 25.476D2Pitch Diameter0.9 - 0.906522.86 - 23.025D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection Over Wire Measurements for 1-5 ACME* OverWire is a measuring method to obatin the pitch diameter of threads. It is mostly used when a manufacturer does not have a Go/Nogo gauge for a thread. You can learn more about it hereInchmmPermissible Wire Diameter Range0.09813 - 0.154942.4924 - 3.9353Ideal Wire Diameter0.103292.6236Possible WiresFrom Standard Sets* 0.10497* 0.11547* 0.1283* 0.14434* 2.5981* 2.8868* 3.1754* 3.4641Once you know your wire diameter, you need to find out what is the premissable Measurement for your pitch diameter (Depending on the class). Use our Over Wire Calculator to find out!Our Top Picks

* Back to Thread Class Selection 1 - 5 ACME 4G ( Internal)* Permisable values for thread Class 4G#DescriptionValue ()Value ()DMajor Diameter1.02 - 1.0425.908 - 26.416D2Pitch Diameter0.9 - 0.906522.86 - 23.025D1Minor Diameter0.8 - 0.8120.32 - 20.574PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 2C ( Internal)* Permisable values for thread Class 2C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.004525.425 - 25.514D2Pitch Diameter0.9 - 0.919422.86 - 23.353D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 3C ( Internal)* Permisable values for thread Class 3C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.004525.425 - 25.514D2Pitch Diameter0.9 - 0.909122.86 - 23.091D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 4C ( Internal)* Permisable values for thread Class 4C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.00325.425 - 25.476D2Pitch Diameter0.9 - 0.906522.86 - 23.025D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection Over Wire Measurements for 1-5 ACME* OverWire is a measuring method to obatin the pitch diameter of threads. It is mostly used when a manufacturer does not have a Go/Nogo gauge for a thread. You can learn more about it hereInchmmPermissible Wire Diameter Range0.09813 - 0.154942.4924 - 3.9353Ideal Wire Diameter0.103292.6236Possible WiresFrom Standard Sets* 0.10497* 0.11547* 0.1283* 0.14434* 2.5981* 2.8868* 3.1754* 3.4641Once you know your wire diameter, you need to find out what is the premissable Measurement for your pitch diameter (Depending on the class). Use our Over Wire Calculator to find out!Our Top Picks

Modified stubacme threaddimensions

* Back to Thread Class Selection 1 - 5 ACME 3C (External)* Permisable values forthread Class 3C#DescriptionValue (Inch)Value (mm)dMajor Diameter0.9985 - 125.362 - 25.4d2Pitch Diameter0.8849 - 0.89422.476 - 22.708d1Minor Diameter0.7664 - 0.7819.467 - 19.812PVaration of Pitch (+/-)0.00080.02αVaration of 14.5° anngle (+/-)0.45°* Back to Thread Class Selection 1 - 5 ACME 4C (External)* Permisable values forthread Class 4C#DescriptionValue (Inch)Value (mm)dMajor Diameter0.999 - 125.375 - 25.4d2Pitch Diameter0.8895 - 0.89622.593 - 22.758d1Minor Diameter0.7703 - 0.7819.566 - 19.812PVaration of Pitch (+/-)0.00080.02αVaration of 14.5° anngle (+/-)0.45°* Back to Thread Class Selection 1 - 5 ACME 2G ( Internal)* Permisable values for thread Class 2G#DescriptionValue ()Value ()DMajor Diameter1.02 - 1.0425.908 - 26.416D2Pitch Diameter0.9 - 0.919422.86 - 23.353D1Minor Diameter0.8 - 0.8120.32 - 20.574PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 3G ( Internal)* Permisable values for thread Class 3G#DescriptionValue ()Value ()DMajor Diameter1.02 - 1.0425.908 - 26.416D2Pitch Diameter0.9 - 0.909122.86 - 23.091D1Minor Diameter0.8 - 0.8120.32 - 20.574PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 4G ( Internal)* Permisable values for thread Class 4G#DescriptionValue ()Value ()DMajor Diameter1.02 - 1.0425.908 - 26.416D2Pitch Diameter0.9 - 0.906522.86 - 23.025D1Minor Diameter0.8 - 0.8120.32 - 20.574PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 2C ( Internal)* Permisable values for thread Class 2C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.004525.425 - 25.514D2Pitch Diameter0.9 - 0.919422.86 - 23.353D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 3C ( Internal)* Permisable values for thread Class 3C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.004525.425 - 25.514D2Pitch Diameter0.9 - 0.909122.86 - 23.091D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 4C ( Internal)* Permisable values for thread Class 4C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.00325.425 - 25.476D2Pitch Diameter0.9 - 0.906522.86 - 23.025D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection Over Wire Measurements for 1-5 ACME* OverWire is a measuring method to obatin the pitch diameter of threads. It is mostly used when a manufacturer does not have a Go/Nogo gauge for a thread. You can learn more about it hereInchmmPermissible Wire Diameter Range0.09813 - 0.154942.4924 - 3.9353Ideal Wire Diameter0.103292.6236Possible WiresFrom Standard Sets* 0.10497* 0.11547* 0.1283* 0.14434* 2.5981* 2.8868* 3.1754* 3.4641Once you know your wire diameter, you need to find out what is the premissable Measurement for your pitch diameter (Depending on the class). Use our Over Wire Calculator to find out!Our Top Picks

Shop M6-1.00 Stainless Steel Threaded Inserts - Replace stripped or cross thread holes |

* Back to Thread Class Selection 1 - 5 ACME 3G ( Internal)* Permisable values for thread Class 3G#DescriptionValue ()Value ()DMajor Diameter1.02 - 1.0425.908 - 26.416D2Pitch Diameter0.9 - 0.909122.86 - 23.091D1Minor Diameter0.8 - 0.8120.32 - 20.574PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 4G ( Internal)* Permisable values for thread Class 4G#DescriptionValue ()Value ()DMajor Diameter1.02 - 1.0425.908 - 26.416D2Pitch Diameter0.9 - 0.906522.86 - 23.025D1Minor Diameter0.8 - 0.8120.32 - 20.574PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 2C ( Internal)* Permisable values for thread Class 2C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.004525.425 - 25.514D2Pitch Diameter0.9 - 0.919422.86 - 23.353D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 3C ( Internal)* Permisable values for thread Class 3C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.004525.425 - 25.514D2Pitch Diameter0.9 - 0.909122.86 - 23.091D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 4C ( Internal)* Permisable values for thread Class 4C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.00325.425 - 25.476D2Pitch Diameter0.9 - 0.906522.86 - 23.025D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection Over Wire Measurements for 1-5 ACME* OverWire is a measuring method to obatin the pitch diameter of threads. It is mostly used when a manufacturer does not have a Go/Nogo gauge for a thread. You can learn more about it hereInchmmPermissible Wire Diameter Range0.09813 - 0.154942.4924 - 3.9353Ideal Wire Diameter0.103292.6236Possible WiresFrom Standard Sets* 0.10497* 0.11547* 0.1283* 0.14434* 2.5981* 2.8868* 3.1754* 3.4641Once you know your wire diameter, you need to find out what is the premissable Measurement for your pitch diameter (Depending on the class). Use our Over Wire Calculator to find out!Our Top Picks

* Permisable values forthread Class 4C#DescriptionValue (Inch)Value (mm)dMajor Diameter0.999 - 125.375 - 25.4d2Pitch Diameter0.8895 - 0.89622.593 - 22.758d1Minor Diameter0.7703 - 0.7819.566 - 19.812PVaration of Pitch (+/-)0.00080.02αVaration of 14.5° anngle (+/-)0.45°* Back to Thread Class Selection 1 - 5 ACME 2G ( Internal)* Permisable values for thread Class 2G#DescriptionValue ()Value ()DMajor Diameter1.02 - 1.0425.908 - 26.416D2Pitch Diameter0.9 - 0.919422.86 - 23.353D1Minor Diameter0.8 - 0.8120.32 - 20.574PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 3G ( Internal)* Permisable values for thread Class 3G#DescriptionValue ()Value ()DMajor Diameter1.02 - 1.0425.908 - 26.416D2Pitch Diameter0.9 - 0.909122.86 - 23.091D1Minor Diameter0.8 - 0.8120.32 - 20.574PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 4G ( Internal)* Permisable values for thread Class 4G#DescriptionValue ()Value ()DMajor Diameter1.02 - 1.0425.908 - 26.416D2Pitch Diameter0.9 - 0.906522.86 - 23.025D1Minor Diameter0.8 - 0.8120.32 - 20.574PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 2C ( Internal)* Permisable values for thread Class 2C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.004525.425 - 25.514D2Pitch Diameter0.9 - 0.919422.86 - 23.353D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 3C ( Internal)* Permisable values for thread Class 3C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.004525.425 - 25.514D2Pitch Diameter0.9 - 0.909122.86 - 23.091D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 4C ( Internal)* Permisable values for thread Class 4C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.00325.425 - 25.476D2Pitch Diameter0.9 - 0.906522.86 - 23.025D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection Over Wire Measurements for 1-5 ACME* OverWire is a measuring method to obatin the pitch diameter of threads. It is mostly used when a manufacturer does not have a Go/Nogo gauge for a thread. You can learn more about it hereInchmmPermissible Wire Diameter Range0.09813 - 0.154942.4924 - 3.9353Ideal Wire Diameter0.103292.6236Possible WiresFrom Standard Sets* 0.10497* 0.11547* 0.1283* 0.14434* 2.5981* 2.8868* 3.1754* 3.4641Once you know your wire diameter, you need to find out what is the premissable Measurement for your pitch diameter (Depending on the class). Use our Over Wire Calculator to find out!Our Top Picks

The other way is - Run the model in open-circuit condition(set current =0). Plot the 3 phase flux linkage and induced voltage plotes.

* OverWire is a measuring method to obatin the pitch diameter of threads. It is mostly used when a manufacturer does not have a Go/Nogo gauge for a thread. You can learn more about it here

* Permisable values forthread Class 4G#DescriptionValue (Inch)Value (mm)dMajor Diameter0.99 - 125.146 - 25.4d2Pitch Diameter0.8895 - 0.89622.593 - 22.758d1Minor Diameter0.7703 - 0.7819.566 - 19.812PVaration of Pitch (+/-)0.00080.02αVaration of 14.5° anngle (+/-)0.45°* Back to Thread Class Selection 1 - 5 ACME 2C (External)* Permisable values forthread Class 2C#DescriptionValue (Inch)Value (mm)dMajor Diameter0.9965 - 125.311 - 25.4d2Pitch Diameter0.8726 - 0.89222.164 - 22.657d1Minor Diameter0.7509 - 0.7819.073 - 19.812PVaration of Pitch (+/-)0.00080.02αVaration of 14.5° anngle (+/-)0.45°* Back to Thread Class Selection 1 - 5 ACME 3C (External)* Permisable values forthread Class 3C#DescriptionValue (Inch)Value (mm)dMajor Diameter0.9985 - 125.362 - 25.4d2Pitch Diameter0.8849 - 0.89422.476 - 22.708d1Minor Diameter0.7664 - 0.7819.467 - 19.812PVaration of Pitch (+/-)0.00080.02αVaration of 14.5° anngle (+/-)0.45°* Back to Thread Class Selection 1 - 5 ACME 4C (External)* Permisable values forthread Class 4C#DescriptionValue (Inch)Value (mm)dMajor Diameter0.999 - 125.375 - 25.4d2Pitch Diameter0.8895 - 0.89622.593 - 22.758d1Minor Diameter0.7703 - 0.7819.566 - 19.812PVaration of Pitch (+/-)0.00080.02αVaration of 14.5° anngle (+/-)0.45°* Back to Thread Class Selection 1 - 5 ACME 2G ( Internal)* Permisable values for thread Class 2G#DescriptionValue ()Value ()DMajor Diameter1.02 - 1.0425.908 - 26.416D2Pitch Diameter0.9 - 0.919422.86 - 23.353D1Minor Diameter0.8 - 0.8120.32 - 20.574PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 3G ( Internal)* Permisable values for thread Class 3G#DescriptionValue ()Value ()DMajor Diameter1.02 - 1.0425.908 - 26.416D2Pitch Diameter0.9 - 0.909122.86 - 23.091D1Minor Diameter0.8 - 0.8120.32 - 20.574PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 4G ( Internal)* Permisable values for thread Class 4G#DescriptionValue ()Value ()DMajor Diameter1.02 - 1.0425.908 - 26.416D2Pitch Diameter0.9 - 0.906522.86 - 23.025D1Minor Diameter0.8 - 0.8120.32 - 20.574PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 2C ( Internal)* Permisable values for thread Class 2C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.004525.425 - 25.514D2Pitch Diameter0.9 - 0.919422.86 - 23.353D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 3C ( Internal)* Permisable values for thread Class 3C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.004525.425 - 25.514D2Pitch Diameter0.9 - 0.909122.86 - 23.091D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection 1 - 5 ACME 4C ( Internal)* Permisable values for thread Class 4C#DescriptionValue ()Value ()DMajor Diameter1.001 - 1.00325.425 - 25.476D2Pitch Diameter0.9 - 0.906522.86 - 23.025D1Minor Diameter0.82 - 0.8320.828 - 21.082PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)αVaration of 14.5° anngle (+/-)0.45 (Ref)11.43 (Ref)* Back to Thread Class Selection Over Wire Measurements for 1-5 ACME* OverWire is a measuring method to obatin the pitch diameter of threads. It is mostly used when a manufacturer does not have a Go/Nogo gauge for a thread. You can learn more about it hereInchmmPermissible Wire Diameter Range0.09813 - 0.154942.4924 - 3.9353Ideal Wire Diameter0.103292.6236Possible WiresFrom Standard Sets* 0.10497* 0.11547* 0.1283* 0.14434* 2.5981* 2.8868* 3.1754* 3.4641Once you know your wire diameter, you need to find out what is the premissable Measurement for your pitch diameter (Depending on the class). Use our Over Wire Calculator to find out!Our Top Picks

UNFthread

Cutting Tools. An extremely comprehensive range of Solid Carbon Steel, High Speed Steel & Carbide cutting tools along with Indexable inserts & tooling. Our ...

Once you know your wire diameter, you need to find out what is the premissable Measurement for your pitch diameter (Depending on the class). Use our Over Wire Calculator to find out!

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The data listed below is valid only for Single Start Threads and engagement lengthsup to 2 For Multiple Starts and large LE's use our ACME Thread Calculator