1/2"-20 x 2-1/2" Chrome Plated Steel Fine Thread Smooth Head Socket Cap ScrewsType: Chrome Socket Cap Screws
Head Style: Smooth Socket (3/8" Socket)
Thread Size: 20 (Fine)
Type: Socket Cap Screw
Box of 5.
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.