Allen screws are a common mechanical connection part that is usually used to fix and join materials such as metal, plastic, wood, etc. It has an internal hexagonal head that can be rotated with a corresponding Allen wrench or wrench barrel and provides greater torque transmission capacity. Hexagon socket screws are made of high-quality alloy steel or stainless steel, which has good corrosion resistance and tensile strength, and is suitable for various environments and working conditions.