BSF

BSF

BSF meaning British Standard Fine, an old style British thread.  Often used on vintage British automobiles and machinery as its fine thread is preferred.  Available in steel and stainless steel although stainless can now be difficult to source.

BSF Socket Cap Screw
BSF Socket Cap Screw
BSF Socket Button Screw
BSF Socket Button Screw
BSF CSK Socket Screw
BSF CSK Socket Screw