316 Stainless Steel Socket Cap Screws 1/4"-20 x 5/8" Qty 100

A socket cap screw is a fastener driven with a socket wrench with a knurled head. A socket cap screw is a type of cap screw with a cylindrical head and hexagonal drive hole. The term socket head cap screw typically refers to a type of threaded fastener whose head diameter is nominally 1.5 times or more that of the screw shank (major) diameter. Also known as socket head cap screws, socket screws, allen socket bolt. All sizes fully threaded unless stated otherwise (PT = Partially Threaded).