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 G L O S S A R Y O F T E R M S A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All Panic Exit Device See Exit Device.
Paracentric A term used in connection with cylinder plugs having projections on the sides of the keyway that extend beyond the vertical center line of the keyway
Paumelle A style of hinge embodying a single joint of the pivot type, generally of modern, or streamlined design.
Pin Tumblers Small sliding pins in a lock cylinder, working against coil springs and preventing the cylinder plug from rotating until the pins are raised to the proper alignment by bitting of key.
Pivot See Door Pivot.
Plug (of a cylinder) The round part containing the keyway and rotated by the key to transmit motion to the bolt(s).
Preassembled Lock A lock that has all the parts assembled as a unit at the factory, and when installed in a rectangular notch cut into the door edge, requires little or no disassembly
Prison Lock A heavy lock designed especially for use on jail cells.
Push Plate A plate applied to the lock stile to protect the door against soiling and wear.
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