When the thread of the locknut is tightened, the bolt thread is firmly inserted into the clamped 30° wedge-shaped slope, and the normal force generated on the wedge-shaped slope is applied to the bolt axis. Clamp it at 60°. The angle is not 30°, so the normal force when tightening the lock nut is much larger than that of the ordinary standard nut, which has excellent anti-loosening and vibration resistance.
The main self-locking and anti-loosening screw fasteners used in locknuts are:
1. Apply glue on the thread to achieve self-locking.
2. Self-locking uses various self-locking bolts or annular groove rivets.
3. Various spring washers are added to the threaded connection pair to realize the thread self-locking.