Product Summary

The MD100 Series Grade 1 heavy-duty small case mortise deadbolt provides a mortise locking solution for restrooms, locker rooms, and storeroom doors. The MD100 is competitively priced and 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. 

  • ANSI/BHMA Grade 1 certified
  • UL/CUL listed for use on 3 hour rated fire doors
  • Built in USA - Meets Buy America Act
  • Optional patented key system available
  • Fits common door prep for new and retrofit applications
  • 10 year mechanical warranty

Product Details

Standard door thickness 

  • 1-3/4"–2-1/4" thicker doors by special request. 
  • 2-3/4" backset.
  • 1-1/8" × 5-9/16" faceplate.
  • 1-1/8" × 3-1/2" no lip dead bolt strike.
  • 1" throw, stainless steel bolt.
  • Non-handed (field reversible).
  • Available in 13 finishes 

Technical Details


  •  ANSI/BHMA A156.36 Grade 1 certified.
  • UL listed 3 hr. fire rating on “A” labeled doors.
  • Fire rated by itself or as auxiliary latching device. 


Typical applications are storage room doors, locker room doors, rest room doors, or any application where latching is not required.

MD100 Series

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