What Is A Dead Locking Latch Bolt

What Is A Dead Locking Latch Bolt

Date:Jun 19, 2019

A higher security latch bolt incorporating a plunger that is held in a retracted position when the door is closed, preventing it from being slipped open (by a credit card). Usually on keyed levers and knobs. 

dead-locking-tube-latchmortise-latch 

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