Allen Key
An Allen Key, also known as a Hex Key, is a compact and essential hand tool used for tightening and loosening hex socket screws and bolts such as Allen bolts, socket head cap screws, and grub screws. Its simple yet effective design allows for high torque application while maintaining a secure grip inside the fastener. Manufactured from high-quality alloy steel, chrome vanadium steel, or stainless steel, Allen Keys offer excellent strength, durability, and wear resistance. Many are heat-treated for enhanced hardness and come with finishes like black oxide, nickel plated, or chrome plated for long service life.