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Glossary of Terms

A2

(n.) An increment of .0125 typically used in a small format interchangeable core (SFIC).
Source: Lock Industry Standards and Training (LIST) Council

A3

(n.) An increment of .018 typically used in a small format interchangeable core (SFIC).
Source: Lock Industry Standards and Training (LIST) Council

A4

(n.) An increment of .021 typically used in a small format interchangeable core (SFIC).
Source: Lock Industry Standards and Training (LIST) Council

Access Control

(n.) Any barrier or device, either natural or man made, that limits or prohibits, free or unlimited access.
Source: Lock Industry Standards and Training (LIST) Council

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.
Source: Lock Industry Standards and Training (LIST) Council

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.
Source: Lock Industry Standards and Training (LIST) Council

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.
Source: Lock Industry Standards and Training (LIST) Council

Active Case

(n.) The exit device case mounted on the stile of the door on which the lock is located.
Source: Lock Industry Standards and Training (LIST) Council

Active Leaf

(n.) The single door of a pair on which the active or locking hardware is mounted.
Source: Lock Industry Standards and Training (LIST) Council

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.
Source: Lock Industry Standards and Training (LIST) Council

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
Source: Lock Industry Standards and Training (LIST) Council

Actuator

(n.) A device, usually connected to a cylinder, which, when activated, may cause a lock mechanism to operate.
Source: Lock Industry Standards and Training (LIST) Council

ADA

(abb.) Americans with Disabilities Act
Source: Lock Industry Standards and Training (LIST) Council

Adjustable Ball Hinge

(n.) A pivot with adjustable height for narrow stile doors.
Source: Lock Industry Standards and Training (LIST) Council

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.
Source: Lock Industry Standards and Training (LIST) Council

Adjustable Mortise Cylinder

(n.) Any mortise cylinder whose length can be adjusted for a better fit in doors of varying thickness.
Source: Lock Industry Standards and Training (LIST) Council

AED

(abb.) Anti-Explosive Device
Source: Lock Industry Standards and Training (LIST) Council

AFTE

(abb.) Association of Firearm and Toolmark Examiners
Source: Lock Industry Standards and Training (LIST) Council

After Hours Depository

(n.) A locked receptacle for the deposit of items after regular hours.
Source: Lock Industry Standards and Training (LIST) Council

AHC

(abb.) Architectural Hardware Consultant (as certified by DHI)
Source: Lock Industry Standards and Training (LIST) Council

AHD

(abb.) After Hours Depository
Source: Lock Industry Standards and Training (LIST) Council

AHJ

(abb.) Authority Having Jurisdiction
Source: Lock Industry Standards and Training (LIST) Council

Alarm System

(n.) A system of electrical and/or electronic components which detect and report dangers, such as fire or intrusion.
Source: Lock Industry Standards and Training (LIST) Council

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.
Source: Lock Industry Standards and Training (LIST) Council

All-Section Key Blank

(n.) The key section which enters all keyways of a multiplex key system.
Source: Lock Industry Standards and Training (LIST) Council

ALOA

(abb.) Associated Locksmiths of America, Inc.
Source: Lock Industry Standards and Training (LIST) Council

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.
Source: Lock Industry Standards and Training (LIST) Council

Angularly Bitted Key

(n.) A key which has cuts made into the blade at various degrees of rotation from the perpendicular.
Source: Lock Industry Standards and Training (LIST) Council

ANSI

(abb.) American National Standards Institute
Source: Lock Industry Standards and Training (LIST) Council

ANSI 117.1

(n.) That section of the American National Standards Institute documents pertaining to handicap access.
Source: Lock Industry Standards and Training (LIST) Council

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".
Source: Lock Industry Standards and Training (LIST) Council

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.
Source: Lock Industry Standards and Training (LIST) Council

Anti-Friction

(adj.) Pertaining to a feature which, upon contact with the strike, allows smoother operation of a latch bolt.
Source: Lock Industry Standards and Training (LIST) Council

Anti-Rap

(adj.) Specifically designed to preclude bypass via attack based on sharp, repetitive blows to the mechanism.
Source: Lock Industry Standards and Training (LIST) Council

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.
Source: Lock Industry Standards and Training (LIST) Council

Arbor

(n.) The threaded end of a safe door handle.
Source: Lock Industry Standards and Training (LIST) Council

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.
Source: Lock Industry Standards and Training (LIST) Council

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.
Source: Lock Industry Standards and Training (LIST) Council

Arm (of a Closer)

(n.) Door closer linkage which connects the closer to the frame or door, depending on the mounting style.
Source: Lock Industry Standards and Training (LIST) Council

Armored Escutcheon

(n.) A usually hardened escutcheon, typically beveled, that resists physical attack.
Source: Lock Industry Standards and Training (LIST) Council

Armored Face Plate

(n.) A face plate that conceals all lock and/or cylinder mounting screws.
Source: Lock Industry Standards and Training (LIST) Council

ASIS

(abb.) American Society for Industrial Security
Source: Lock Industry Standards and Training (LIST) Council

Assembly Occupancy

(n.) Those buildings or areas which are designated as places of assembly according to life safety or building codes.
Source: Lock Industry Standards and Training (LIST) Council

Associated Change Key

(n.) A change key which is related directly to particular master key(s) through the use of constant cuts.
Source: Lock Industry Standards and Training (LIST) Council

Associated Master Key

(n.) A master key which has particular change keys related directly to its combination through the use of constant cuts.
Source: Lock Industry Standards and Training (LIST) Council

ASTM

(abb.) American Society for Testing and Materials
Source: Lock Industry Standards and Training (LIST) Council

Astragal

(n.) A molding attached to the face of the active leaf of a pair of doors and overlapping the inactive leaf.
Source: Lock Industry Standards and Training (LIST) Council

ATM

(abb.) Automatic Teller Machine
Source: Lock Industry Standards and Training (LIST) Council

ATT

(abb.) Attendant's Key
Source: Lock Industry Standards and Training (LIST) Council

Attack Resistance

(adj.) Design qualities of a product that render brute force physical defeat methods less effective or ineffective.
Source: Lock Industry Standards and Training (LIST) Council

Attendant's Key

(n.) A selective master key used in a hospital keying system.
Source: Lock Industry Standards and Training (LIST) Council

Audit Overrun

(n.) A means of attack designed to eliminate entries in an access control database, overfilling and scrolling off previous entries.
Source: Lock Industry Standards and Training (LIST) Council

Audit Trail

(n.) A specific group of events selected from transaction records and listed sequentially.
Source: Lock Industry Standards and Training (LIST) Council

Authority Having Jurisdiction

(n.) That person, usually within a municipality, charged with the application and interpretation of local life safety codes.
Source: Lock Industry Standards and Training (LIST) Council

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.
Source: Lock Industry Standards and Training (LIST) Council

Automatic Deadbolt

(n.) A deadbolt designed to extend itself fully when the door is closed.
Source: Lock Industry Standards and Training (LIST) Council

Automatic Flush Bolt

(n.) A flush bolt designed to extend itself when both leaves of the pair of doors are in the closed position.
Source: Lock Industry Standards and Training (LIST) Council

Automatic Key Machine

(n.) A machine capable of cutting keys with manual operations limited to loading and unloading keys.
Source: Lock Industry Standards and Training (LIST) Council

Automatic Teller Machine

(n.) A device for dispensing cash, receiving deposits and performing other banking functions upon presentation of the proper authorization.
Source: Lock Industry Standards and Training (LIST) Council

Auxiliary Lock

(n.) Any lock installed in addition to the primary lockset.
Source: Lock Industry Standards and Training (LIST) Council

Auxiliary Spring

(n.) A secondary spring used to support the lever handles of a lockset.
Source: Lock Industry Standards and Training (LIST) Council

Auxiliary Spring Rose

(n.) Oversized trim that interlocks with a lock chassis and external lever as a means to mount an auxiliary spring.
Source: Lock Industry Standards and Training (LIST) Council