DT20 Mortice Lock

Complimentary Hardware

  • Extended strikers to suit include DT23 (140mm) and DT24 (160mm) frame.
  • Rebate kit – DT22 suitable for 12mm (1/2in) door stiles.
  • Cylinders – DS197 & DS201.
  • Lever on Rose – DS1160.
  • Lever on Plate – DS1400 & DS1500.
  • Hinges – DH30, DH31, DH32, DH33, DH34, DH35 & DH40X.
  • Doric C4 keyed and non keyed flushbolts – 140mm, 210mm & 400mm.
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  • Heavy duty 45 mm Backset 2 Point Mortice Deadlock
  • Commonly used in bi fold or hinged door applications where a 90mm door stile is present.
  • 85mm pitch suitable for both lever on rose and lever on plate furniture.


  • Non handed chassis with reversible latch.
  • Kit includes narrow non handed strike and black dust box.