Door locks and strike plates secure doors and locks and keep occupants safe. Deadbolt locks have retractable bolts that slide into a compatible strike plate. Keyless access deadbolt locks allow keyless entry into buildings and facilities. Cylinders and re-keying kits provide replacement cylinders and kits with components that allow locks to be re-keyed without replacing the lockset. Strike plates pair with compatible deadbolts or latch bolts to reinforce the area where the latch or bolt sits when the door is closed. Electric strikes for electromagnetic locking systems control locking mechanisms on doors. Electromagnetic lock power supplies supply power to operate and control electromagnetic locks. Magnetic contacts are low-current devices that send signals to an alarm or access control system when a door is opened. Rim and auxiliary locks provide security by mounting onto the surface of doors when traditional deadbolts cannot be used. Door reinforcers help prevent break-ins.