Principle of Anti-theft Nut
When the nut is tightened clockwise, the ball rolls along the curved blind groove, and the plastic inner bushing of the nut will fall off automatically. Counterclockwise loosening the nut, due to the radial size of the blind groove gradually becomes smaller, the ball is stuck in the threads, can not loosen the nut, so as to play the role of anti-theft. This type of anti-theft nut has been widely used in the national electric power tower and signal tower, easy to operate, anti-theft effect is very strong.
How to remove the anti-theft nut
1, exit the nut washer, etc., may be difficult, but must exit; tap the screw inward to loosen it and return it to the wall as far as possible.
2, with the help of a torch, observe and find the widest place between the expansion bolt jacket and the round hole of the security door. If the widest point can be inserted into the head of the sharp-nosed pliers and reach the wall, then continue with the following steps. Otherwise skip to step 6.
3, with a suitable small drill bit, in the most place against the wall side of the hole, about 3-4mm deep can be, the hole is basically also close to the bolt jacket.
4, with sharp-nosed pliers from the hole into the clamp bolt jacket (one side of the pliers to be inserted between the screw and the jacket), also in and out, slightly rotating, slowly remove the jacket.
5, the above need a thin and long sharp-nosed pliers, short and thick can not.
Anti-theft nuts and ordinary nuts difference
Anti-theft nuts are more wear-resistant, corrosion-resistant and durable than ordinary nuts. Anti-theft nut is a one-off product, because the radial size of the blind groove gradually becomes smaller and its internal ball stuck in the threads and thus play a very good role in anti-theft, and its internal with a special plastic inner liner to ensure that the ball to ensure that the activities of the plastic washer freely.
