Anti-theft bolt

Abstract

The application discloses a theftproof bolt and relates to the field of bolts, which comprises a rod body, a theftproof mechanism arranged on the rod body, an external thread arranged on the rod body, a fastening sleeve arranged on the rod body and a nut head fixedly arranged on the fastening sleeve. The nut head is installed by an external wrench, the nut head is rotated, the fastening sleeve is fixedly installed, when the fastening sleeve has a large torsion, the nut head is broken at the connecting part of the fastening sleeve, the nut head can be further disassembled, the fastening sleeve arranged in a T-shaped inclined surface is difficult to be rotated under stress, compared with the stress of the existing cylindrical surface contact, the fastening sleeve is arranged in an inclined manner, so that the stress surface is point contact, the stress contact rotation is more difficult, and the function of theft prevention is achieved, so that the bolt can be prevented from being disassembled and stolen after installation.

Images