Taijing fastening technology is developed according to the company's patent, with independent intellectual property rights, is the most advanced internal thread fastening technology; By changing the pitch of the internal thread to change the thread force structure, the maximum force of the thread is limited, the plastic deformation of the thread is eliminated under the ultimate load, and the preload is maintained by elastic deformation to achieve self-locking and anti-loosening.

The pitch of the inner thread of Taijing is greater than that of the external thread (see the figure below), under the action of the preload F, the external thread is stretched to the right and becomes longer, and with the increase of the preload F, the contact surface between the external thread and the internal thread increases proportionally; The structure limits the force of each turn of thread, prevents the plastic deformation of the thread, and also limits the maximum force of the bolt thread and reduces the overload fracture caused by the stress concentration of the bolt thread.

Under the variable load such as vibration and shock, the maximum load of the bolt can reach the guaranteed load of the bolt when using Taijing fastening technology, that is: residual preload + working load ≦ bolt guaranteed load.

Taijing fastening technical characteristics:

 1. Cooperate with standard external threads, easy to use;

 2. There is no need to attach any anti-loosening measures, and the anti-loosening effect is better than the existing known anti-loosening structure;

 3. Structurally eliminate thread tripping;

 4. Improve the load capacity of the external thread and reduce the probability of external thread breakage;

 5. Ensure that the actual preload is consistent when the tightening torque is the same, and improve the assembly quality;

 6. All-metal structure, suitable for various ambient temperatures;

 7. Suitable for various types of internal threads;

 8. The tap using Taijing fastening technology has the same fastening capacity;

 9. Replace the conventional internal thread to realize product upgrading;

 10. Good abrasion resistance, can be reused many times.