A diamond nut is a special-shaped nut. Its shape is diamond-shaped or hexagonal, has a larger contact area than ordinary nuts, and can provide better anti-sliding performance.

Grooved cylindrical head screw is a common type of screw, which is usually used to fix parts and provide mechanical connections. It is characterized by a cylindrical head and no slot,

The four-corner screw is a specially designed screw whose threaded head has four parallel corner structures, which has a unique appearance and function compared with traditional hexagon screws.

The inner hexagonal screw is a kind of screw whose threaded head is designed as a hexagonal groove, which is used to accept tools such as the inner hexagonal wrench or torque wrench for installation and removal.

Welding nuts are a method used to fix metal components. Usually, the welding nut is achieved by placing the nut on the metal surface and then welding it to the metal surface by arc welding or other we

Metal gasket is a thin sheet made of metal material, which is often used to fill or seal the gap between two surfaces to prevent liquid or gas leakage. Metal gaskets usually have excellent high temperature resistance