Grade 1 locks are tested and certified to be in compliance with the following ANSI/BHMA Standards:
Cylindrical, Bored and Preassembled Locks & Latches
8...
Both the ND50 and ND53 will not unlock when the door is shut. The only way to pop the button is by turning the key on the outside or the lever on the inside.
Occasionally custome...
The default backset is 2 3/4" and the latch faceplate dimensions are 1 1/8" x 2 1/4".
The latch supplied is the 13-047 deadlatch and 13-048 springlatch.