The Threaded Hitch Bolt and Lock Replacement ensures your bikes and gear stay safely secured to your vehicle. This bolt fits Thule hitch-mounted bike racks and cargo carriers, eliminating unwanted movement within the receiver. A included 1-Key lock cylinder locks the carrier tightly to the hitch for extra peace of mind. The integrated dust cover helps keep the lock mechanism free from debris. This bolt installation takes just minutes and helps give you confidence your valuable bicycles and equipment are protected wherever your adventures take you. Package includes bolt, locking cylinder, 2 keys and all necessary hardware for do-it-yourself installation.