The locknut is a kind of nut with high anti-loosening performance, which can work normally even in harsh environments. Generally speaking, locknuts have three advantages

The standard lock nut is a round nut with four small grooves on its outer periphery. It can be screwed on the stud body with a crescent wrench. The lock nut should be equipped with a washer for the shaft.

The all-metal steel hexagonal self-locking nut can exert a stable locking function

Self-locking nuts generally rely on friction.

The mechanical function of the nut mainly depends on the hardness of the nut, the height of the nut, and the wall thickness of the nut.