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Testing of mortise locks according to DIN 18251-2



DIN 18251-2 - Mortise locks for tube frame doors

Division Building components:

Further information and contact

Scope according to DIN 18251-2 (Chapter 1):

This standard specifies terminology, dimensions, requirements, tests and marking for mortise locks with latch bolts and/or deadbolts including mortise locks with self-locking, that are suitable for the installation in tube frame doors.


Requirements according to DIN 18251-2 (chapter 6):

  • Materials
  • Latch bolts and deadbolts
  • Lock case
  • Faceplate
  • Switch
  • Self locking
  • Escape door function
  • Drill protection
  • Corrosion protection
  • Strike plate



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