RUMORED BUZZ ON TYPES OF SCREW HEADS SHAPES

A socket cap screw, also known as a socket head capscrew, socket screw, or Allen bolt, is actually a type of cap screw which has a cylindrical head and hexagonal drive hole. The expression socket head capscrew ordinarily refers to a type of threaded fastener whose head diameter is nominally 1.5 moments that of your screw shank (significant) diamete