Introduction of anti-theft bolt

There are commonly used anti-theft bolts, such as bolts, nuts and tools used in iron towers, metal frames and high-level guardrails currently erected in the field. Even if there are special anti-theft bolts, their popularization and use are affected by the high price, improper secondary fastening and easy loosening, which makes important facilities such as iron towers, transformers and guardrails easy to be stolen and unloaded. This patent breaks the concept of polygonal shape of conventional standard fasteners. Tapered external threads are used to cooperate with special tools, which can only be tightened clockwise, and the anti-clockwise disassembly tool will fall off. The conical shape effectively avoids the possibility of disassembly with pipe tongs, thus achieving the best anti-theft unloading effect. Even if it is loose for a long time, it can continue to be tightened to meet the requirements of customers.