anti-theft lock nut with spring and ball

Specifications

have no point of force, with spring and ball, very difficuly to open it from bolt.

1. Unique appearance
This type of product is round without any point of force, averting the weakness that other angularity anti-theft nuts which are easily destroyed.
2. The anti-theft structure is all surrounded by the buried type.
The anti-theft theory of the products is rational and scientific designed ,
which can directly effect its inner,combining with bolt tightly so that cannot be directly destroyed by external force,such can make better Security effect.
3. Outer ring
it added one circle, the outer ring can twirl freely after finished installatoin, which can protect it against impact.