The Advantages of Anti-Loosening Nuts

A self-locking nut is a type of nut engineered to possess high resistance to loosening, ensuring reliable performance even under harsh environmental conditions. Generally, self-locking nuts offer three key advantages:

 

Resistance to Wear and Shear: The 30° inclined surface located at the root of the nut's threads ensures that the locking force is distributed uniformly across the entire thread surface of every individual thread. Because the pressure applied to the thread surface of each individual thread is evenly distributed, the nut is highly effective at mitigating issues related to thread wear and shear deformation.

 

Exceptional Vibration Resistance: Once the assembly is tightened, the threads of the bolt are firmly seated and wedged into the 30° inclined ramp within the nut. Consequently, a normal force is generated along this inclined ramp. This generated force acts at a 60° angle relative to the bolt's axis-rather than the standard 30° angle-resulting in a normal force that is significantly greater than that of a standard nut. This characteristic endows the nut with exceptional resistance to both loosening and vibration.

 

It offers excellent reusability. Even with heavy usage-involving repeated tightening and removal-the locking force remains undiminished, effectively maintaining the original locking performance. These anti-loosening nuts possess outstanding wear resistance and shear strength. The threads of the anti-loosening nut feature a 30-degree incline at the root; this design generates a compressive force on every thread, thereby ensuring that the nut's locking force is distributed uniformly across all thread flanks. Thanks to this uniform distribution across the surface, the anti-loosening nut is highly effective in mitigating issues related to screw wear and shear deformation.

 

The scope of application for anti-loosening nuts is steadily expanding. In particular, they are increasingly penetrating markets within the aerospace, automotive, railway, marine, and general threaded-fastener sectors. Furthermore, they are finding widespread application across numerous fields, including construction, machinery, the petroleum industry, agricultural machinery, electric power, the defense industry, and medical equipment.