BSF Machine Screws

BSF machine screws (British Standard Fine), have a fine thread profile with a specific pitch and angle. The thread angle is 55 degrees, similar to other metric fine threads.  BSF machine screws are commonly used in applications where fine thread engagement is required, especially in machinery, engines, and automotive applications.

We stock them with a CSK Slotted head in self colour, zinc and stainless. Sizes include 1/4", 5/16", 3/8". We can source other heads as required.