Mortice lock TKZ20

You can reliably lock your flat entrance doors with corridor fittings using the mortice lock. In use, it impresses with its special wear resistance and corrosion protection.
  • Mortice lock for apartment entrance doors tested in accordance with DIN 18251 class 2
  • 72 mm gap between the nut and door cylinder hole

Mortice lock TKZ20


Once fitted, the mortice lock ensures convenient opening and closing of the door.

The mortice lock is a secure solution for flat entrance doors with corridor fittings and a distance measurement of 72 millimetres. It disappears completely inside the door and impresses with its high wear resistance. Bolt and latch are made of metal, the steel wing nut sits in high-quality plastic bearing shells. The use of electrolytic galvanisation means that rust cannot harm the lock. It is available in different versions for DIN right or DIN left doors.


  • Mortice lock conforming to DIN 18251 class 2
  • Suitable for door cylinders according to DIN EN1303
  • Metal latch and bolt
  • Steel wing nut, in high-quality plastic bearing shells
  • High capacity of resistance by use of high quality materials
  • Extra corrosion protection by electrolytic galvanizing
  • Integrated chip protection
  • Integrated distance bolts to stabilize the lock body

Operation and use:

  • For internal doors/apartment doors
  • When closing the door only the latch is being operated 
  • By locking the door cylinder the bolt is activated
  • Forend 20 x 235 mm (round)
  • Available for DIN left and right doors


  • Finishes: hammer blow gold, polished brass, silver lacquered, stainless steel, white
  • Different versions for DIN right or DIN left opening doors


Mortise locks

The mortice lock is activated by the door cylinder – it may be invisible but it has a crucial function. Just as it's impossible to start an engine without a starter motor, a door cannot be locked without a mortise lock. ABUS mortise locks that meet DIN 18251 ABUS offers a wide range of mortise locks that meet DIN 18251 with solutions for a variety of needs, e.g. fire doors or doors with narrow profiles. The premium product is the TKZ 40 – ...
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