![]() Necessary when an overlapping astragal is present and exit devices, automatic or self-latching bolts are used with closers on both door leaves.Ĭutout (Door): A piercing for hardware, lite, louvers, and/or accessories.Ĭylinder: The cylindrical-shaped assembly containing the tumbler mechanism and the keyway, which can be actuated only by the correct keys.Ĭylindrical Lock Prep (161 Prep): Cutout (or hole) in a door for Bored/Cylindrical locksets.įace (Frame): Exposed part of frame when viewed perpendicular to face of the door also referred to as trim.įCDB: Abbreviation for “Frame Cut Down Bottom” – Cut jamb legs down in height.įiller Plate: A blank plate used to fill mortised cutouts.įire Lite: A type of ceramic glass used in fire rated doors and frames.įire Rated Door or Frame: The ability of a door or frames to provide an effective barrier against the passage of flames, smoke and toxic gases and / or to reduce the transmittance of radiated heat.įlush Bolt: A door bolt mounted (flush) on the inside face or edge of a door. Also known as a piano hinge.Ĭombination Anchor: A device for anchoring a frame to wall constructed with wood or metal stud.Ĭoordinator: A device used on a pair of doors to ensure that the inactive leaf is permitted to close before the active leaf. Provides additional strength for attachment of door closers.Ĭontinuous Hinge: A hinge that extends the full length of a door. Typically change keys are issued to personnel that require access to one or two areas in a facility.Ĭloser Reinforcement: A reinforcing piece inside of a door or frame. Change keys are also referred to as day keys. Cam: A rotating piece attached to the end of a cylinder plug to engage the locking mechanism.Ĭased Opening: A steel frame with no stops.Ĭhange Key: A key on the lowest level of a master keying system. ![]()
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