3/8"-24 Socket Head Cap Screw, Plain Steel, 3/4 in Length, 6 PK, Midwest Fastener, Mfr#: 79573

A socket cap screw is a type of cap screw with a hexagonal recessed drive. A hex key is required to tighten or loosen a socket screw. Socket screws are commonly used in assemblies that do not provide sufficient clearance for a conventional wrench or socket.