Cotter Pins

The cotter pin is a kind of mechanical part, in order to avoid damaging the hole wall, grease and lubricating oil can be added to the pin hole, and the production of this part requires the use of high-quality steel, rigid material with good elasticity.

The cotter pins are commonly used for positioning and locking. After the nut is tightened, insert the cotter pin into the nut groove and the bolt tail hole, and pull the tail of the cotter pin open to prevent the relative rotation of the nut and the bolt. A cotter pin is a kind of metal hardware, commonly known as a spring pin.

In mechanical systems, cotter pins can be used to connect two parts and prevent them from moving relative to each other. It can also be used to prevent other parts from falling off, such as using cotter pins on bicycle axles to secure wheels.