Cal-Royal SC Series, Extra Heavy Duty Mortise Locks with Clutch, Grade 1 - Classroom Security Lock w/ Deadbolt and Auxiliary Latch SC8458, F34 Rim & Mortise Pushing and turning button locks

Pushing and turning button locks outside knob requiring use of key until button is manually unlocked

3/4" Thick Steel Door

EMP Resistant Type 1 S&G Spartan D-Drive Electronic Lock

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

UL Fire Rated Latch

Cal-Royal SC Series, Extra Heavy Duty Mortise Locks with Clutch, Grade 1 - Classroom Security Lock w/ Deadbolt and Auxiliary Latch SC8458, F34 Rim & Mortise Pushing and turning button locksClassroom Security Lock w Deadbolt and Auxiliary Latch Function: Latch bolt retracted by lever from either side unless outside lever is locked from inside or outside by key. Deadbolt projected or retracted by key outside. Operating inside lever retracts both bolts and unlocks outside lever. Auxiliary latch deadlocks latch bolt when door is locked or latch bolt deadlocks when deadbolt is projected. Inside lever is always free. Can retrofit Schlage