- Check for a manufactures stamp on the lock face plate.
- Is the lock on the chiselled into the door? (Morticed) or on sits on the outside (Rim)
- What locking mechanisms are on the lock?
Mortice locks are locks that requires to be installed inside the Wooden or Metal mortise cut-out in the door or piece of furniture into which the lock is to be fitted.
Rim lock is a locking device that attaches to the surface of a door. Most Rimlocks used today on external door are nightlatches. Please be aware not all Rim Nightlatches are British standard so aren't approved by insurance
Advantage of using cylinder locks over lever locks is; there are millions of key differs available which allows extensive master key systems as well as a high degree of key security for thousands of locks
Multipoint locks are commonly fitted in plastic doors. They comprises of a central locking mechanism and long strips with addtional locking devices such as hooks or rollers.
Some times referred to as intercom systems, kepad or fob entry. These systems are designed for advanced home security and convenience.
Knob sets are locks where the lock and handle are integral to each other. This type of lock was more common place in the 1970s and used in hotels as part of Master Key Systems, as time has gone by manufactures.