Yes. In specific applications, we are not sure how many times it can be used, but we can say that there are many products that use the anti-loosing locking concept design. After 50 times of assembly and disassembly, we have not found There are signs of a slight decrease in the locking force.  Under ......

As long as the materials used in the connecting parts are within the design working temperature range and the same coefficient of expansion and contraction, It will not be affected by the extreme temperature change.

Yes. When looking in both ends of the screw hole with the naked eye, there is different 30° wedge thread . But if the hole is small, it is more difficult to identify the unique thread.It can be  detected by such as gauge, borescope, etc.

Yes. The national standard nut has no directionality.ESLO 30° wedge ramp is only on one side of the female thread. Therefore, the lock nut has self-locking force only in one direction. Therefore, we recommend flange surface nut which instruct direction clearly.

No. The variable thread is specially designed for internal threads. The external thread is very difficult in machining accuracy.

This type anti-loosening thread technology has been tested in thousands of different applications. It has been widely used in aerospace, aviation, railways,automobiles, medical care, furniture, construction machinery and other industrial machinery, etc.