Six basic methods of nut locking

Flat washer

Washer refers to the part between the connected part and the nut. It is generally a flat metal ring used to protect the surface of the connected part from nut scratches and disperse the pressure of the nut on the connected part.

Flatten washer and spring washer

Spring washers are widely used in load-bearing and non-load-bearing structures of general mechanical products, which is characterized by low cost, easy installation, and suitable for frequent installation and disassembly parts. But the spring washer's anti-loosening ability is very low!

Self-locking nut

General nuts in the use process due to vibration and other reasons will be loose, such as vibration, in order to prevent this phenomenon, so the invention of self-locking nuts. Self-locking nut its function is mainly anti-loose, anti-vibration. For special occasions. Its working principle is generally self-locking by friction. The type of self-locking nut classified according to function has a nylon ring, a neck closure, and a metal locking device. They are effective torque type locknuts.

Nut lockout

Apply the nut anti-loosening solution to the place where the bolt is tightened, and then screw on the nut to achieve the effect of anti-loosening.

Double nut (left and right rotation) lock

It is also a good method to tighten and prevent loosening by combining a left nut with a right nut.

Screws and nuts are drilled and fixed with pins

In machinery, pins are mainly used for assembly positioning, and can also be used as overload shear connections in connection and release grade safety devices. The types of pins are: cylindrical pins, taper pins, hole pins, cotter pins and safety pins.