All Socket Caps

Socket head cap screws, or simply called ‘socket cap screws’ are used in machine parts and are especially common for removable panels and parts. Socket cap screws are the strongest 'socket' head type with a round cylindrical head and tightened with an Allen key (socket wrench) drive.  Socket caps are the general term for Socket Head Cap screws, but loosely also refer to Button Head, and Flat Head screws as well.