In machinery, the pin is mainly used for assembly positioning, can also be used as a connector to transfer power and torque, meanwhile it is widely used as a protection to cut the connection when the safety device overload. Precision stainless steel pins usually use Stainless Steel Dowel Pins, 316 stainless steel, 18-8 stainless steel, and so on. The following uses 18-8 stainless steel pins as an example.