Locking Nut

Other names: root nut, anti loosening nut, and nut.
Usage: Lock the threaded outer joint or other pipe fittings.
The working principle of a nut is to use the friction force between the nut and the bolt for self-locking. However, the reliability of this self-locking will decrease under dynamic loads. In some important occasions, we will take some anti loosening measures to ensure the reliability of nut locking. One of the anti loosening measures is to use a locking nut.