Heavy Duty Entrance Mortise Lock - Knob to Knob Function 2 3/4" Backset

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Item #: R-01BM-8895X


This heavy-duty, entrance mortise lock is an excellent choice for new, or as a replacement on older exterior doors. Designed for a 2 3/4" backset, it features solid-brass strike and faceplates, and comes equipped with an anti-friction latch for smooth operation. Its auxiliary latch allows for added security. This set comes complete with a 1 1/8" cylinder, three standard keys, and is reversible for left or right-hand doors. Match the decor of any room with your choice of five classic finishes.

When using this as a replacement lock, it is important to measure existing cutouts on your door, including the backset, face plate, and mortise pocket. Some modification of your cutouts may be required.

Dimensions: Backset: 2 3/4". Lock box: 5 5/8" H x 3 3/4" D x 13/16" thick. C-C spacing from cylinder to knob hub is 3 7/16" (knob hub fits 7mm spindles). C-C spacing from knob hub to thumb turn hub is 2 1/4". Faceplate: 8" H x 1 1/4" W. Strike plate: 4 7/8" H x 1 1/4" W. Tongue: 5/8" projection. Complete with a 1 1/8" cylinder, three standard keys and is field reversible for left or right hand doors.

This lock has egress and can cause lock outs if the stop button is not disengaged when exiting the door.

Hardware Tip

Backset: On a lock or latch, it is the distance from the front of the face plate to the center of the knob hub. On the door, it is from the edge of the door to the center of the door knob.
WARNING: California Proposition 65
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