1/2-13 X 5 1/2 SOCKET CAP SCREW (WITH NYLON PATCH)

Socket head cap screws, also known as socket cap screws or Allen bolts, are a type of threaded fastener designed for applications where a high-strength, flush-fitting, and visually appealing connection is required. These screws have a cylindrical head with a recessed hexagonal (hex) socket at the top, allowing them to be tightened or loosened using an Allen wrench or hex key.

Socket head cap screws are frequently used in industries such as manufacturing, construction, automotive, aerospace, and electronics, where precise and secure fastening is essential. They are particularly useful in situations where a clean, flush appearance is desired, as the recessed socket prevents the screw head from protruding and disrupting the surface.