A socket cap screw, often called a socket head capscrew, socket screw, or Allen bolt, is actually a type of cap screw with a cylindrical head and hexagonal push gap. The phrase socket head capscrew typically refers into a type of threaded fastener whose head diameter is nominally one.5 situations https://types-of-roof-flashing48035.mdkblog.com/35068355/not-known-factual-statements-about-types-of-screw-heads-pdf-free-download