Left. Right. Run channel bolt. A threaded rod with a drive head (such as hex, 12 point, torx, etc.) on one end used to secure the Door Lock Cover 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 Window Regulator Guide Rail to its mounting surface. Door Window Glass Surround Channel Bolt. Window Regulator Bolt. and Washer Assembly. and Washer Assembly - HEX. HEAD. Door Glass Surround Channel. Door Lock Rod Cover. Guide. Retainer. Run Channel. Shield.