The door can be locked 3 ways and all three lock the doorknob on the outside. It is only unlocked by pushing the buttons. This lock uses a jointed spindle so that the inside doorknob never locks.
These are the 3 ways to lock the door:
-key from outside locks knob and throws deadbolt
-turn piece from inside locks the knob and throws deadbolt
-push buttons (only locks the doorknob, does not throw the deadbolt); used when leaving. No key is needed.
2.75" Baldwin Mortise Lock with Buttons
Finish Codes
US3 Polished Brass
US3A Unlacquered Brass*
US7 Hand Antiqued Brass*
US9A Polished Bronze*
US9B Antiqued Bronze*
US10B Oil Rubbed Bronze
US8 Antique Copper
*requires finishing service charge
US9A Polished Bronze
US9B Antiqued Bronze
Handing Codes
RH - Right Handed Door
LH - Left Handed Door
RHR - Right Hand Reverse
LHR - Left Hand Reverse
Measurements
For schematics and standard dimensions consult Locks and Latches under Hardware 101
For handing information consult How to Determine the Handing of a Door under Hardware 101
Description
Lock with buttons allows the door to be locked without a key. 2-3/4" Backset; Left or Right or Left or Right Reverse handing. Sold Individually. Cylinder sold separately.