Espagnolette Lock, Piccolo-Nova Case, with Pin Tumbler Cylinder, Backset 15 mm

MK locking system

Art. no. 225.58.198

  • Master key system organisation
  • Master key system organisation

    Locking maps are useful for organising comprehensive master key systems. They make organisation much easier. Generally, a distinction is made between two systems: Simple organisation with a master key (abbreviated to MK) and multi-level organisation with a general master key (abbreviated to GMK).

    Organisation with master key (MK locking systems)

    MK systems have several individual keys (IK) that are keyed to differ, i.e. they are not interchangeable.


    Then there is the master key (MK), which overrides all of the individual keys and therefore opens every lock in this system.


    MK locking systems are ideal for small offices with a boss and several employees.

    Organisation with general master key (GMK locking systems)

    GMK systems have both individual keys (IK) and group keys (GK) that are assigned to different IK's. Several GK's can be assigned to one master group key (MGK).


    The general master key (GMK) then overrides every key in the system.


    GMK locking systems are used for organisation in large office buildings with several departments and sub-departments.

    Closure direction and closure travel

    Closure travel for cam locks 90°

    Closure travel for cam locks 180°

    Closure direction left

    Closing direction right

    The closure travel is specified by numbers and the closure direction is specified by letters with cam locks. They refer to the installation situations shown in the tables. Locks with closure travel 180° can be altered to all closure travels. Factory set is closure travel 1.


    Locks with closure travel 90° are either left or right locking locks. The closure direction is here specified by letters. The first letter indicates the factory setting, the closure direction can be altered to the letters specified in brackets by re-positioning the locking cam (example: Closure direction A [D, F, G]).

    Art. no. 225.58.198


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    Espagnolette Lock, Piccolo-Nova Case, with Pin Tumbler Cylinder, Backset 15 mm

    backset: 15 mm MK locking system

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    Article details

    Locking function

    MK locking system


    For divided profile rod Ø 6 mm


    Case: Zinc alloy
    Cylinder: Brass


    Matt nickel plated

    Backset D

    15 mm

    Cylinder length

    21 mm

    Cylinder Ø

    18 mm

    Locking system

    With 5 pairs of pin tumblers = 10,000 possible key changes


    For screw fixing
    Product Features

    Supplied with

    1 espagnolette lock

    2 key

    1 cylinder rosette

    Security pass and locking map with master key systems

    Order reference

    For master key systems the order must be based on the locking map.

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    Corporate Office: Häfele America Co., 3901 Cheyenne Drive, Archdale, N.C. 27263
    Phone: 800.423.3531, Fax: 800.325.6197, Local Phone: 336.434.2322, Email: