Anti-theft bolt guard

An anti-theft device for securing a bolt having a head a first washer, a threaded end, a second washer and a nut, the anti-theft device comprising:

• a cylindrical body having a concentric hole through a longitudinal axis and a first and second end, said second end having a cover ledge, a corresponding seal cover for engagement within the cover ledge, said first end having a washer ledge with diameter larger than the hole for circumscribing the second washer, a nut recess located near said first end for circumscribing the nut with a gap interposed between the nut and a ring surface, said body first end for engaging the second washer, nut and threaded end of the bolt, a lock recess located near the second end, a disk shaped guard nut located within the lock recess for engaging the threaded end of the bolt;
• said guard nut having a centrally located threaded hole corresponding in size for engagement with the threaded end of the bolt, said guard nut having a smaller diameter first end which tapers to a larger diameter second end wherein at least one pin hole opens from said second end, said guard nut contained within the lock recess in an installed position;
• a third washer for placement on the bolt, said third washer located between the first end of the guard nut and the ring surface, a fourth washer for placement on the bolt, said fourth washer adjacent to the second end of the guard nut;
• said seal cover having a recess diameter corresponding to the cover ledge of the body such that said seal cover is press fit and secured flush within the second end of the body;
• a head guard having a cylindrical shape and a concentric hole through a longitudinal axis, said hole sized for allowing passage therethrough of the threaded end but not the head, said head guard having a first end and a second end with a concentric cylindrical head recess located between the first end and the second end, a cover ledge located near the first end, a head cover for engagement within the cover ledge;
• and
• said head guard for engagement with the head such that the head is contained within the head recess in the installed position, said head cover having a recess corresponding in size to the cover ledge such that said head cover can be press fit flush within the first end of the head guard.

An anti-theft bolt guard for engaging and securing the threaded end of a bolt and nut, the bolt guard comprising:

• a cylindrical body having a first end and a second end with a longitudinal axis and a concentric hole extending from the first end to the second end, a concentric cover ledge near the second end and a concentric lock recess between the cover ledge and the first end, a concentric washer ledge near the first end and a concentric nut recess between the washer ledge and second end;
• the washer ledge for circumscribing a second washer, the cylindrical body for installation over the threaded end and nut with a gap interposed between the nut and a ring surface where the first end of the body is flush against a plate and the threaded end of the bolt is disposed within the concentric hole;
• a circular disk shaped guard nut having a first end and a second end and a concentric threaded hole therethrough, the second end having at least one pin hole, for engagement with a key, where the guard nut is located within the lock recess when threaded to the bolt;
• a third washer located between the first end of the guard nut and the ring surface,
• a fourth washer located adjacent the second end of the guard nut;
• and
• a circular seal cover having a recess for installation in the cover ledge such that the seal cover is installed flush with the second end of the body.