The Fact About types of screwdriver heads That No One Is Suggesting
A socket cap screw, often called a socket head capscrew, socket screw, or Allen bolt, is usually a type of cap screw using a cylindrical head and hexagonal travel hole. The expression socket head capscrew ordinarily refers to some type of threaded fastener whose head diameter is nominally 1.5 periods that of the screw shank (significant) diameter,