Description

An Allen bolt is a fastener with a hexagonal socket head that is tightened or loosened with an Allen wrench. Allen bolts are also known as hex socket bolts, Allen head bolts, or socket head cap screws. How Allen bolts are used Aerospace and defense Allen bolts are used to assemble aircraft, satellites, and defense equipment. Industrial applications Stainless steel Allen bolts are used in a variety of industrial applications because they are resistant to rust and corrosion. Features of Allen bolts Allen bolts have a hexagonal socket in the head. Allen bolts can have different head styles, such as button head, cap head, and countersunk head. Allen bolts are made from a variety of materials, including stainless steel, duplex steel, and high tensile. Allen bolts can be made in metric and imperial sizes. How Allen bolts are tightened An Allen wrench, also known as a hex socket key, is inserted into the hexagonal socket in the head of the bolt. The Allen wrench is used to tighten or loosen the bolt.