Fender mount bolt. Left. Right. A screw that is used to secure the Floor Pan Heat Shield to it's mounting point. A threaded rod with a drive head (such as hex, 12 point, torx, etc.) on one end used to secure the Stone Guard to a mounting point. Fender Bolt. Mud Flap Screw. Air deflector. Center. Fender mount. Floor Pan Heat. Mud Flap. Stone Guard.