Allen key bolts

Socket Head Cap Screw is turned by means of an axial hexagonal hole in its head. Invented by William G. Allen and then named after him, Allen screws are usually simple small and light. Ideally there are six contact surfaces between bolt and driver. It can be applied in a hole using a key.Allen Bolts are Used in exterior and automotive to marine, coastal, and high temperature environments.Button Head Bolts is also known as Socket cap Screw, cap screw,socket head cap screw,allen bolt,allen head cap screw or hex head cap screw.