1/4 -20 x 7/8 Black Chrome Smooth Socket Cap Screws (8 pcs.)

Diameter: 1/4 Length: 7/8 Material: Steel Finish: Black Chrome Head Style: Smooth Socket (3/16 Socket) Thread Size: 20 (Coarse) Thread Length: Full Type: Socket Cap Screw Box of 8. 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.