Cal-Royal NM Series, Extra Heavy Duty Mortise Locks, Grade 1 - CLASSROOM SECURITY LOCK W/ DEADBOLT AND AUXILIARY LATCH F34 Trim:SS It's designed to be easily

It's designed to be easily mounted between 16" studs and the pre-drilled holes with a built-in flange on the sides allow for simple installation without the need to replaster

This model in particular

Drill Resistant Hardware

Weight: 115

Standard Duty

Cal-Royal NM Series, Extra Heavy Duty Mortise Locks, Grade 1 - CLASSROOM SECURITY LOCK W/ DEADBOLT AND AUXILIARY LATCH F34 Trim:SS It's designed to be easilyLatch bolt operated by lever from either side except when outside lever is lock from inside or outside by key. Deadbolt retracted by key from inside or outside. Operating inside lever retracts both bolts and unlocks outside. Auxiliary dead latch when door is locked. Inside knob lever is always free for immediate egress.