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Master and general keying

The locks, hardware and accessories that you install on your buildings all rely on the integration of the lock cylinder and the key.

There are a number of different systems to suit your security needs.

  • Keyed to Differ (KD)

    With a keyed to differ system, each lock can only be opened by its own individual key. All Lockwood locks are supplied 'keyed to differ' unless a special keying system is requested.

  • Keyed Alike System (KA)

    This system allows for a number of locks to be operated by the same key, it is ideally suited to residential applications such as front and back doors.

  • Master Keyed System (MK)

    A master keyed system is one where each lock has its own individual key which will not operate any other lock in the system, but where all locks in the system can be operated by one master key.

  • Grand Master Keyed System (GMK)

    The grandmaster keyed system is an extension of the master keyed system where each lock has its own individual key and the locks are divided into two or more groups. Each group of locks is operated by a master key, and the entire system is operated by one grand master key.

  • Maison Keyed System (MAIS)
  • This system is widely used in apartments, flats, office blocks, hotels and motels. Each apartment, flat or office has its own individual key which will not operate the lock to any other apartment, flat, hotel room or office but will operate the locks to communal entry doors and other services areas.

  • Construction Keyed System (CK)

    A system where it is necessary for contractors to gain entry to a building during construction but to prevent entry by the same contractors after the building has been occupied or handed over.

  • Multi-Element Profile Keying System (MEP)

    A series of unique element key profiles, where each element changes the overall shape of the profile. Each individual profile key will enter a dedicated key way. The elements of some of these individual profiles in a group can be incorporated in one profile, resulting in a Master Profile Key which will be capable of entering all dedicated key ways in that group. Inclusion of all elements in the profile will result in a unique grand master profile capable of entering all corresponding individual keyways created by the elements in the series.

Peter Hyatt Locksmiths are able to help you with a number of keying solutions, contact us to find out more.

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