Cal-Royal NM Series, Extra Heavy Duty Mortise Locks, Grade 1 - ESCUTCHEON TRIM PRIVACY W/ OCCUPIED INDICATOR Function, Left-Hand (VE-ZE) Master System Keys resulting instead in the thumb

resulting instead in the thumb turn freely spinning without engaging the bolt

It is designed with 10 gauge steel and an additional ¼ inch steel plate on the interior of the door giving this safe 30% thicker steel than most competing brands

Active Spring Loaded Relocker

There is a piece inside which locks the thumbturn into the lock itself

Thumb Turn Key for MUL-T-LOCK Captive Key Deadbolt

Cal-Royal NM Series, Extra Heavy Duty Mortise Locks, Grade 1 - ESCUTCHEON TRIM PRIVACY W/ OCCUPIED INDICATOR Function, Left-Hand (VE-ZE) Master System Keys resulting instead in the thumbPrivacy w Occupied Indicator Function: Latch bolt operated by lever from either side except when outside lever is made inoperative by push button rocker. When outside lever is locked, latch bolt may be retracted by key from outside or by rotating inside lever. *** Auxiliary deadbolt latch. Any door in commercial or institutional buildings where the best auxiliary Mortise deadbolt locks are required Backset: 2 ( 70 mm ) Door Range: 1 ( 44 mm ),