hard lock nut with Spring and Balls is a kind of product which company combines numerous product feature of anti-theft nut in existence, through continuous improvement , search and developes new-style anti-theft nut. This product has received national utility model patent, the patent number is ZL200720090142.7, the main specifications are m-16, m-18, m-20, m-22,m-24. The product can wide applicate to anti-theft fasteners or components in the field facilities such as electric power system, correspondence system and highway. It is a good anti-theft function, convenient installation and low cost anti-theft nut, and the nut also can be made according the demands of customer.

Technical requirements of hard lock nut

     1. The noumenon of this product is national standard nuts, and the material is common carbon steel, whose number is Q235A, mechanical performance can up to grade 4.8.

     2. The surface has been processed by multi-alloy infiltration techniques, and it’s antirot function is better than other treatment technique. The time of anti-theft can up to 25-30 years.

     3. Being installed conveniently and strong commonality.