But a lot of varieties of anti-theft bolt, it can widel […]
But a lot of varieties of anti-theft bolt, it can widely used in the project are not many, anti-theft bolts from an external circle type nut standard six angle screw, nut, special standard six angle (external circular) and pin. The inside of the axial machining of cylindrical type nut with the nail, and pin. Slot in the medial axial processing cylindrical type nut.
The method of use is:
1) Install the standard six angle screw and tighten the standard six angle nut with the wrench.
2) Wring the special outer circular nut with the hand.
3) Pin the pin between the outer nut and the screw, and destroy the screw thread by the pin.