Allen Head Cap Screws - 5/16" x 1" - Black - 5/Pkg

This hardened steel Allen head cap screw features phosphate coating for superior corrosion resistance and enhanced lubrication properties. The internal hex socket design enables precise torque application using standard Allen keys in confined spaces where conventional wrenches or sockets cannot operate effectively. Ideal for machinery assembly, automotive repairs, and precision equipment installation where space limitations restrict tool access and higher torque requirements are essential for secure, reliable fastening performance in demanding applications.