Why?

The mechanism for locking and protecting the covers on public lighting poles/lampposts consists of a stainless steel screw with an eccentric spring that is placed on the screw before screwing, and serves to increase the tightening force of the screw and absorb external unwanted influences on the cover when attempting to open the cover without authorization, as well as a stainless steel butterfly with a threaded part into which a screw is screwed, which is used to fix the cover in the lamppost. The advantages of this product are contained in the fact that it is made of heat-treated stainless steel, which is a material extremely resistant to external influences, thus avoiding corrosion of the protective mechanism and the object behind the protection. The use of this material also prevents the screw from cracking during unscrewing. The specially designed screw head makes it impossible to unscrew the screw without a special key.