Anti-theft bolt assembly and installation tool

The utility model provides an anti-theft bolt assembly and an installation tool, relates to the technical field of bolts, and aims to solve the technical problem that outdoor equipment is easy to steal in the prior art. The device comprises a bolt body, a first nut and an anti-theft cover, the anti-theft cover is provided with a blocking elastic piece capable of being pressed and deformed in one direction, the bolt body is sleeved with the anti-theft cover, the first nut is in threaded connection with the bolt body, and the first nut rotates downwards along the bolt body to enter the anti-theft cover. A sliding groove is formed in the bottom of the first nut, the blocking elastic piece can be inserted into the sliding groove and relatively moves in the extending direction of the blocking elastic piece, and in the process that the first nut abuts against the blocking elastic piece and then continues to rotate downwards along the bolt body, the blocking elastic piece can be extruded to contract so that the firs