Abstract: A jam-proof, tamper resistant lug nut is disclosed for holding a tire rim on a bolt extending from an axle mount. The lug nut comprises a tapered main body with a plurality of rounded, raised wrench engaging surfaces. The main body of the nut includes a proximal end, which abuts against the wheel mounting surface, and a distal end. A threaded hole extends from the proximal end toward the distal end along a longitudinal axis defined by the hole. The main body is further tapered and includes a star-shaped exterior section which decreases in size along the axis toward the distal end.

Abstract: A trailer king pin lock for preventing theft of a trailer by negating connection of a trailer king pin with a tractor fifth wheel coupling. A sleeve is provided that is receivable about the trailer king pin. A locking unit housing, which extends radially relative to the sleeve, is attached to the sleeve and carries a locking cylinder for sliding movement therein. A bore is provided in the sleeve and is enclosed by the housing. The locking cylinder passes through the bore for insertion into an annular groove typically found in a trailer king pin. A radially extending locking cylinder retaining pin is carried by the locking cylinder and is outwardly extendable upon the turning of a key inserted into the locking cylinder.

Abstract: A cover for a padlock including a top cover portion having a top wall, side walls and end walls, the top wall defining shackle leg receiving openings, and the top and side walls having a generally U-shaped protrusion therealong to permit expansion and contraction with size variation of the padlock. A bottom portion of the lock cover includes a bottom wall, side walls and end walls that are removably connectable to the top cover portion, the bottom wall having an elongated membrane therein to receive a key and having shoulders to hold the lock body out of contact with the bottom wall. Side walls of the bottom cover portion have a generally U-shaped protrusion therealong to permit expansion and contraction.