Support screw. A Bolt used on a floor jack. A threaded rod with a drive head (such as hex, 12 point, torx, etc.) on one end used to secure the Engine Mount Support Bracket to it's Mounting point. Automatic Transmission Oil Cooler Bolt. Bolt used to secure the door Hinge. Engine Coolant Pipe Bolt. Engine Mount Bolt. Included with: Cooler Pipe.