Button Head Cap Screw (BHCS), 5/16"-24 Thread, 1.000" Length, Black Oxide

A button head socket cap screw is a type of cap screw with a cylindrical head and hexagonal drive hole. A button head socket cap screw is most commonly driven with an allen wrench or hex key. Most button socket cap screws feature clean heads with no stamping Button Socket Head Screws are commonly used in automotive, electronics, machinery and manufacturing applications due to their versatility, raised dome head, and durability.or marking for a nice clean finished look.