Door lock hardware and accessories let users maintain or improve the performance of door locks in their facility. Mortise lock cases are used to secure doors in public and residential buildings. Intruder defense systems can be used to prevent doors from opening in an emergency situation. Rim locks are used on internal doors and gates to deter intruders. Auxiliary locks have deadlocks and night latches and are designed to prevent doors from being kicked in. Door lockset prep tool kits help users manage their door locks.