There are a wide variety of non-standard parts, including non-standard screw nuts, non-standard screws, non-standard bolts and other non-standard parts. Non-standard parts are mainly used for fastening parts. All components that must be used in manufacturing machinery are based on different materials. Non-standard parts are classified into several major types: carbon steel, stainless steel, and non-ferrous metals (such as copper). Non-standard parts can be connected together by means of inner threads, nuts and bolts of the same size.
The working principle of non-standard parts is to use the friction between the non-standard screw nut and non-standard screw for self-locking. However, the reliability of this self-locking in dynamic loads is reduced. In some important occasions, we will take some measures to prevent looseness and ensure the reliability of non-standard parts. Non-standard nuts with good quality are sold on the market. In the inner surface of the non-standard nut, copper small pieces that match the thread of the non-standard nut are inserted to prevent the radial tightening screws from directly contacting with the locked threads. the latter. This type of non-standard nut gradually starts to be applied in the case where the shaft end of a rotary motion type part is locked