Socket screws are commonly used in assemblies that do not provide sufficient clearance for a conventional wrench or socket.3/8"-24 Socket Head Cap Screw, Chrome Plated Steel, 1-1/4 in Length, 10 PK A hex key is required to tighten or loosen a socket screw..
70 Socket Head Cap Screw, Black Oxide Steel, 10 mm Length, 20 PK A hex key is required to tighten or loosen a socket screw.M4-0.. Socket screws are commonly used in assemblies that do not provide sufficient clearance for a conventional wrench or socket.