Hinge bolt. Left. Right. A threaded rod with a drive head (such as hex, 12 point, torx, etc.) on one end used to secure the Skid Plate to it's mounting point. Bolt that secures the hood Hinge. Bolt used to secure the door Hinge. and Washer Assembly. and Washer Assembly - HEX. HEAD. Door. Hood. Powertrain Skid Plate. Shield.