Left.2WD. Right.2WD. A threaded rod with a drive head (such as hex, 12 point, torx, etc.) on one end used to secure the Window Regulator Guide Rail to its mounting surface. Bumper Cover Reinforcement Beam Bolt. TRailer Hitch Receiver Bolt. Windshield Washer. Bracket. Bumper Cover Reinforcement Beam. Guide channel. Nut, Flange. REINFORCED Beam. Stabilizer bar screw. TRailer Hitch Receiver. Window Regulator Guide.