Nut works by using nuts and bolts to lock the friction between. But this locks of reliability in the dynamic load is reduced. On some important occasions we will take against loose measure to ensure the reliability of the locking nut. Lock nut is one of them against loose measure.

Lock nut locking effect mainly depends on the nut and bolt mesh interaction between threads. Increase interaction between meshing thread in many ways, such as applying which nut will thread a structural improvement, nylon nut nylon increased roughness of thread surface treatment.