Coarse vs finethread chart

Still unsure what type of thread is right for your project? Contact the fastener experts at Global Certified Fasteners at (708) 450-9301 or sales@gcfasteners.com and we’ll be happy to help you find what best meets your application’s requirements.

Fine vs coarsecrackles

When working with stainless steel, aluminum, titanium and other alloys, fine threads are preferable, particularly because of their strength.

Fine vs coarsecoffee

When it comes to fasteners, threads are key. Threads determine how well fastener components (like nuts, bolts and screws) hold materials and machines together, and maintain their integrity over time. The two main types of threads are coarse and fine, and while both types have their advantages and appropriate uses, coarse threads typically win in our book. Read on to learn the basics of these two types of threads and when you might consider using them in your applications.

Coarse threads are typically called for in most industrial applications, particularly in aviation and military situations, due to a variety of advantages.

First, some definitions. Fine threaded bolts have a smaller pitch, meaning more threads per axial distance than coarse threaded bolts. Fine threaded bolts can also gall (when metallic surfaces slide against one another and friction and adhesion cause material to be pulled from one surface and then adhered to the other) more easily than coarse threads, and they are often harder to obtain.