Generally speaking, if you want the bolt to be engaged with the variable thread to produce the same tension as the standard thread, the torque applied should be larger.

According to the thread size and bolt grade, we provide a recommended torque calculation method .Generally, we recommend a higher torque than the standard 60˚ thread.This is the conclusion of a large number of practical applications.

As with any parts connected by bolts, the integrity of the joint will be affected.

It depends on the conditions, generally the recommended torque is sufficient. In some important applications, the torque should be increased appropriately.

If the surface of the fastened part or component is rough, under strong vibration, the surface will wear and become smooth, resulting in a gap and a decrease in axial force. For this type of application, re-twisting is required. The number of re-twisting should be determined based on experiments.

Yes. ESLO lock nuts have been used in the steel structure connection of Shanghai maglev high-speed trains, and the effect is good. Its torque coefficient is slightly higher than that of standard threads.