Door Hardware Products

DORMA D900 Small Case Mortise Dead Bolts

Grade 1 Heavy-Duty Grade 1 Mortise Dead Bolts​

The D900 Series Grade 1 heavy-duty mortise deadbolts provide a reasonably priced mortise locking solutions for doors like restrooms, locker rooms, and store room doors. The D900 can be used as a primary locking device or as an accessory to another latching device. These locksets are built with a heavy-duty chassis for all applications where ANSI/BHMA A156.36 Grade 1 products are required.

Locks ANSI/BHMA Grade 1 certified

  • UL/CUL listed for use on 3 hour rated fire doors
  • Optional patented key system available
  • Fits common door prep for new and retrofit applications

Product details

Versatile Features

The D900 dead bolt is manufactured with the finest materials for exceptional strength and durability, and is available in a range of functions to meet your needs. Thumb turns and finishes complement the DORMA M9000 mortise lock offering.