#4-40 x 1/4 Plain Steel Coarse Thread Socket Cap Screws SCSS-090

Diameter: #4 Length: 1/4 Material: Steel Finish: Plain Head Style: Socket (3/32 Socket) Thread Size: 40 (Coarse) Thread Length: Full Type: Socket Cap Screw 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.