Bumper screw. Left. Right. A Screw that is used to secure the Liftgate Bumper to its mounting point. A threaded rod with a drive head (such as hex, 12 point, torx, etc.) on one end used to secure the Liftgate Wedge to it's mounting point. Interior Grab Bar Screw. Interior Grab Bar. Liftgate Bump Stop Bolt. Overslam. Pan HEAD. Pull handle Bolt.