M Series - Heavy Duty Mortise Lockset - Grade 1
Functions

 
Outside Inside Series /
Function
Type ANSI No. Function Description
M8050 Office F04 Latchbolt operated by lever from either side except when outside lever is made inoperative by push button rocker.  When outside lever is licked, latchbolt may be retracted by key from outside or by rotating inside lever
***Auxiliary deadbolt latch.
M8070 Classroom F05 Latchbolt operated by lever from either side except when outside lever is locked, latchbolt may be retracted by inside lever, or outside lever, when cylinder is unlocked by key.
***Auxiliary deadbolt latch.
M8080 Storeroom F07 Latchbolt operated by key from outside or by rotating inside lever.  Outside lever is always inoperative.
*** Auxiliary deadbolt latch.
M8453 Entrance F20 Latchbolt operated by lever from either side except when outside lever is made inoperative by push button rocker.  Deadbolt projected by key from outside and by thumbturn from inside.  Deadbolt retraced by key from outside.  Both bolts retracted by inside lever (simultaneous retraction).
*** Auxiliary deadbolt latch.
M8456 Corridor / Exit F13 Latchbolt operated by lever from either side.  Deadbolt projected by key from outside and thumbturn from inside.  Rotating inside lever retracts both bolts (simultaneous retraction).  Extended deadbolt automatically deadlocks latchbolt.
M8473 Dormitory / Bedroom F21 Latchbolt retracted by knob or lever from either side.  Deadbolt extended or retracted by key outside or thumbturn inside.
M8060 Apartment Entrance / Vestibule F09 Latchbolt operated by lever from either side except when outside lever is locked by inside key.  Outside key or inside lever will retract latch when locked.
*** Auxiliary deadbolt latch.
M8466 Store / Utility F14 Latchbolt operated by lever from either side.  Deadbolt by key on either side.
M8485 Hotel F15 Latchbolt operated by key from outside or by rotating inside lever.  Outside lever is always inoperative.  Deadbolt operated by thumbturn from inside which shuts out all keys except emergency key.  Inside lever will retract both bolts (simultaneous retraction).
***Auxiliary deadbolt latch.
M8040 Privacy F02
F19
F22
Latchbolt operated by lever from either side except when turnpiece projects deadbolt and locks outside lever.  Unlocked by turning inside lever or by using emergency key which retracts the deadbolt.
M8010 Passage F01 Latchbolt operated by lever from either side at all times.
M8170 Dummy   Lever on one side fixed by lever return spring bracket.