Socket head cap screws, also known as Allen head screws, are exclusive high-strength tension fasteners that are specifically designed for clamping assemblies. Socket screws are primarily used in tool and die fixture applications; however, due to their unique head design, ultra-durable and reliable socket Allen bolts can be used for a wide range of applicationsSocket cap screws are commonly used in machine parts, die fixturing, and clamping. The socket head enables driving where there is not sufficient space for wrenches or sockets