Home Hardware Plus had mortise locks to fit your every commercial business need. Mortise locks are the metal casing that holds the operating part of a lockset into a pre-cut mortise cut in the door. Mortise locks are considered a very strong and secure lock, since there is a hidden lock and its keyhole is only visible from the outside. We offer both single cylinder locks and double cylinder locks to provide this strong security lock to you at an affordable price. Single cylinder locks feature a key on the outside but not on the inside. A double cylinder mortise lock on the other hand is operated on both sides with a key, offering better protection against intruders since a key is needed for both sides on entry. Although complex in their aesthetic, mortise locks are supreme locks to provide you and your space protection. Check out our different mortise lock styles to find a lock to provide the security your business deserves.