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A2
- (n.) An increment of .0125 typically used in a small format interchangeable core (SFIC).
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A3
- (n.) An increment of .018 typically used in a small format interchangeable core (SFIC).
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A4
- (n.) An increment of .021 typically used in a small format interchangeable core (SFIC).
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Access Control
- (n.) Any barrier or device, either natural or man made, that limits or prohibits, free or unlimited access.
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Access Control Cylinder
- (n.) A replacement for a mechanical cylinder which incorporates electronic access control and allows the original host lock to function without additional wiring or hardware modifications.
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Access Control Key Fob
- (n.) Any device other than a key designed to allow a token to be used and carried on a key ring.
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Accessory Position
- (n.) The position of an ignition switch intended to permit the use of radio or other equipment without turning on a drive train component.
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Active Case
- (n.) The exit device case mounted on the stile of the door on which the lock is located.
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Active Leaf
- (n.) The single door of a pair on which the active or locking hardware is mounted.
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Active Relocking Device
- (n.) A device that places its bolts every time a safe door is closed and activation via attack prevents it from retracting its bolts.
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Active Retainer
- (n.) 1. A cylinder retaining mechanism which requires that the plug be rotated before the cylinder can be removed
(n.) 2. A plug retaining mechanism which requires that the plug be rotated before the retainer can be removed
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Actuator
- (n.) A device, usually connected to a cylinder, which, when activated, may cause a lock mechanism to operate.
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ADA
- (abb.) Americans with Disabilities Act
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Adjustable Ball Hinge
- (n.) A pivot with adjustable height for narrow stile doors.
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Adjustable Collar
- (n.) A spring-loaded cylinder collar which can fill a range of gaps between the cylinder head and the door or escutcheon surface.
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Adjustable Mortise Cylinder
- (n.) Any mortise cylinder whose length can be adjusted for a better fit in doors of varying thickness.
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AED
- (abb.) Anti-Explosive Device
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AFTE
- (abb.) Association of Firearm and Toolmark Examiners
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After Hours Depository
- (n.) A locked receptacle for the deposit of items after regular hours.
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AHC
- (abb.) Architectural Hardware Consultant (as certified by DHI)
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AHD
- (abb.) After Hours Depository
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AHJ
- (abb.) Authority Having Jurisdiction
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Alarm System
- (n.) A system of electrical and/or electronic components which detect and report dangers, such as fire or intrusion.
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Aligning Tube
- (n.) 1. A lock component which orients and joins the latch and knob spindles of certain bored locksets.
(n.) 2. In some combination locks, a tube which houses the spindle, located between the dial ring and the lock.
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All-Section Key Blank
- (n.) The key section which enters all keyways of a multiplex key system.
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ALOA
- (abb.) Associated Locksmiths of America, Inc.
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Americans with Disabilities Act
- (n.) A US federal law dealing with minimum standards of building accessibility, as well as other issues concerning individuals with disabilities.
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Angularly Bitted Key
- (n.) A key which has cuts made into the blade at various degrees of rotation from the perpendicular.
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ANSI
- (abb.) American National Standards Institute
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ANSI 117.1
- (n.) That section of the American National Standards Institute documents pertaining to handicap access.
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ANSI Strike
- (n.) Any of many strikes designed to fit door and frame preparations as specified in the applicable document in the ANSI A115 series, common usage refers to a strike with dimensions of 4 7/8" X 1 1/4".
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Anti Slip Positioned
- (adj.) Of or pertaining to the orientation of a cam on a profile cylinder which requires rotation before it may be removed from the lock case.
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Anti-Friction
- (adj.) Pertaining to a feature which, upon contact with the strike, allows smoother operation of a latch bolt.
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Anti-Rap
- (adj.) Specifically designed to preclude bypass via attack based on sharp, repetitive blows to the mechanism.
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Anti-Wrench Reinforcement Spring
- (n.) A lock cylinder spring designed to protect the inner and outer halves of a profile cylinder from being forcibly separated as a means of brute force entry.
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Arbor
- (n.) The threaded end of a safe door handle.
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Architectural Finish Code
- (n.) One of a series of specification codes used to indicate the color and texture of a metal end product that can be installed. Some finish specifications also note the base metal characteristics and processes used to obtain the end product.
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Architectural Hardware
- (n.) 1. Fittings applied to protect a surface of, or to facilitate use of movable members in a building such as doors, windows, or cabinets.
(n.) 2. Various fixtures used in building construction.
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Arm (of a Closer)
- (n.) Door closer linkage which connects the closer to the frame or door, depending on the mounting style.
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Armored Escutcheon
- (n.) A usually hardened escutcheon, typically beveled, that resists physical attack.
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Armored Face Plate
- (n.) A face plate that conceals all lock and/or cylinder mounting screws.
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ASIS
- (abb.) American Society for Industrial Security
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Assembly Occupancy
- (n.) Those buildings or areas which are designated as places of assembly according to life safety or building codes.
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Associated Change Key
- (n.) A change key which is related directly to particular master key(s) through the use of constant cuts.
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Associated Master Key
- (n.) A master key which has particular change keys related directly to its combination through the use of constant cuts.
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ASTM
- (abb.) American Society for Testing and Materials
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Astragal
- (n.) A molding attached to the face of the active leaf of a pair of doors and overlapping the inactive leaf.
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ATM
- (abb.) Automatic Teller Machine
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ATT
- (abb.) Attendant's Key
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Attack Resistance
- (adj.) Design qualities of a product that render brute force physical defeat methods less effective or ineffective.
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Attendant's Key
- (n.) A selective master key used in a hospital keying system.
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Audit Overrun
- (n.) A means of attack designed to eliminate entries in an access control database, overfilling and scrolling off previous entries.
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Audit Trail
- (n.) A specific group of events selected from transaction records and listed sequentially.
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Authority Having Jurisdiction
- (n.) That person, usually within a municipality, charged with the application and interpretation of local life safety codes.
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Automatic Closing
- (adj.) Pertaining to a door which is equipped with a door closer, or other device to close it without manual intervention. Frequently found in Life Safety and fire code requirements.
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Automatic Deadbolt
- (n.) A deadbolt designed to extend itself fully when the door is closed.
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Automatic Flush Bolt
- (n.) A flush bolt designed to extend itself when both leaves of the pair of doors are in the closed position.
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Automatic Key Machine
- (n.) A machine capable of cutting keys with manual operations limited to loading and unloading keys.
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Automatic Teller Machine
- (n.) A device for dispensing cash, receiving deposits and performing other banking functions upon presentation of the proper authorization.
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Auxiliary Lock
- (n.) Any lock installed in addition to the primary lockset.
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Auxiliary Spring
- (n.) A secondary spring used to support the lever handles of a lockset.
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Auxiliary Spring Rose
- (n.) Oversized trim that interlocks with a lock chassis and external lever as a means to mount an auxiliary spring.
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