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Locksmith Glossary

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 Appendix



sym. symbol for "keys" used after a numerical designation of the quantity of the keys requested to be supplied with the cylinders; e.g., lk, 2k, 3k, etc. it is usually found in hardware/keying schedules.
abb. keyed alike
KA1, KA2, etc.
symbol which indicates that all cylinders so designated are or are to be operated by the same key(s). The numerical designation indicates the keyed alike group or set.
KA/2, KA/3, etc.
symbol used to indicate the quantity of locks or cylinders in keyed alike groups. These groups are usually formed from a larger quantity; e.g., 30 cylinders KA/2.
abb. key bitting array
abb. keyed different
n. the movable portion of an electric strike which captures the bolt, see also "strike"
n. a properly combinated device which is, or most closely resembles, the device specifically intended by the lock manufacturer to operate the corresponding lock
key bitting array
n. a matrix (graphic) display of all possible bittings for change keys and master keys as related to the top master key
key bitting punch
n. a manually operated device which stamps or punches the cuts into the key blade, rather than grinding or milling them
key bitting specifications
n. pl. the technical data required to bit a given (family of) key blank(s) to the lock manufacturer's dimensions
key blank
n. any material manufactured to the proper size and configuration which allows its entry into the keyway of a specific locking device. A key blank has not yet been combinated or cut.
key cabinet
n. a cabinet with hooks, velcro, or other means designed to store keys systematically
key caliper
n. an outside caliper specifically made with an anvil of size and shape to measure the root depth of bittings
key casting kit
n. a collection of mold, filler and equipment which permits duplication of a key through the production of a soft metal temporary likeness
key change
adj. referring to a lock in which the combination can be changed through the use of a special key or tool without disassembling the lock
key change wheel
n. a safe lock component that may have the orientation of its gate altered via a special key and process
key changeable
adj. of or pertaining to a lock or cylinder which can be recombinated without disassembly, by the use of a key. The use of a tool may also be required.
key check
n. a small identification tag on which characters are imprinted, typically attached to a key by a ring
key clamp
n. 1. a part on some types of clippers that secures the key, 2. see key vise
key coding machine
n. a key machine designed for the production of code keys. It may or may not also serve as a duplicating machine.
key control
n. 1. any method or procedure which limits unauthorized acquisition of a key and/or controls distribution of authorized keys 2. a systematic organization of keys and key records
key cut(s)
n. the portion of the key blade which remains after being cut and which aligns the tumbler(s)
key cut profile
n. the shape of a key cut, including the cut angle and the out root shape
key duplicating machine
n. a key machine which is designed to make copies from a pattern key
key extractor
n. a tool designed for use to remove a broken or stuck key from a lock
key gauge
n. a usually flat device with a cutaway portion indexed with a given set of depth or spacing specifications. It is used to help determine the combination of a key.
key holder
n. a person to whom a key has been issued
key-in-knob cylinder
n. a cylinder used in a key-in-knob lockset
key-in-knob lockset
n. any lockset with a key operated cylinder in one or more knobs
key-in-lever lockset
n. any lockset with a key operated cylinder in one or more lever handles
key interchange
n. an undesirable condition, usually in a master key system, whereby a key unintentionally operates a cylinder or lock
key lock
adj. pertaining to a device operated by a mechanical key, as opposed to combination, electonics, etc.
key locking dial
n. a combination lock dial which can be disabled by a keyed lock cylinder
key locking dial ring
n. a dial ring fitted with a keyed lock that can disable the dial
key machine
n. any machine designed to cut keys, See also "key coding machine" and "key duplicating machine."
key manipulation
n. manipulation of an incorrect key in order to operate a lock or cylinder
key micrometer
n. an outside micrometer specifically made with an anvil of size and shape to measure the root depth of bittings
key milling
n. the grooves machined into the length of the key blade to allow its entry into the keyway
key override
n. 1. a provision allowing interruption or circumvention of normal operation of a combination lock or electrical device 2. adj. of or pertaining to such a provision, as in "key override cylinder"
key override cylinder
n. a lock cylinder installed in a device to provide a key override function
key pull(s)
n. a lock specification which indicates by quantity and orientation the position(s) in which a key may be withdrawn
key pull position
n. any position, of the cylinder plug at which the key can be removed
key records
n. pl. records which typically include some or all of the following: bitting list, key bitting array, key system schematic, end user, number of keys/cylinders issued, names of persons to whom keys were issued, hardware/keying schedule
Key Records Department
n. the department which is responsible for generating and issuing all lock and key combinations and maintaining records of them
key rest
n. a non-movable part of a key machine vise that is used to position and align the bottom of the blade
key retaining
adj. 1. of or pertaining to a lock which must be locked before its key can be removed. 2. of or pertaining to a cylinder or lock which may prevent removal of a key without the use of an additional key and/or tool
key section
n. the exact cross sectional configuration of a key blade as viewed from the bow toward the tip
key section identifier
n. any tool, device or software used to identify a particular key section
key switch
n. a switch operated by a keyed lock mechanism, which may be an integral part of the switch assembly
key symbol
n. a designation used for a key combination in the standard key coding system, e.g., A, AA, AA1, etc.
key system schematic
n. a drawing with blocks utilizing keying symbols, usually illustrating the hierarchy of all keys within a master key system. It indicates the structure and total expansion of the system.
key trap core/cylinder
n. a special core or cylinder designed to capture any key to which it is combinated, once that key is inserted and turned slightly
key vise
n. the part of a key machine that holds a key
key wound
adj. of or pertaining to a time lock, one that is set and or powered by a removable element resembling a key
adj. 1. combinated 2. having provision for operation by key
keyed alike
adj. of or pertaining to two or more looks or cylinders which have or are to have the same combination. They may or may not be part of a keying system
keyed different
adj. of or pertaining to a group of locks or cylinders, each of which is or is to be combinated differently from the others. They may or may not be part of a keying system.
keyed random
adj. of or pertaining to a cylinder or group of cylinders selected from a limited inventory of different key changes. Duplicate bittings may occur.
n. the opening through which a non-cylinder key must pass to enter a lock
keyhole plate
n. an escutcheon for a keyhole
keyhole plug
n. a portable lock that may be locked into a bit key aperture to block access
n. any specification for how a cylinder or group of cylinders are or are to be combinated in order to control access
keying conference
n. a meeting of the and user and the keying system supplier at which the keying and levels of keying, including future expansion, are determined and specified
keying kit
n. a compartmented container which holds an assortment of tumblers, springs and/or other parts
keying schedule
n. a detailed specification of the keying system listing how all cylinders are to be keyed and the quantities, markings, and shipping instructions of all keys and/or cylinders to be provided
keying symbol
n. a designation used for a lock or cylinder combination in the standard key coding system; e.g., AA1, XAA1, XlX, etc.
n. 1. the opening in a lock or cylinder which is shaped to accept key bit or blade of a proper configuration 2. the exact cross sectional configuration of a keyway as viewed from the front. It is not necessarily the same as the key section.
keyway post
n. 1. see "guide" # 2" 2. the projecting pin of a lock or cylinder which enters the hollow end of a key
keyway unit
n. the plug of certain binary type disc tumbler key-in-knob locks
keyway ward
n. a ward which prevents entry of an incorrect key into a cylinder or lock
kick plate
n. a protective plate mounted on the bottom of a door to prevent damage to minimize damage to the door
abb. Key-in-Knob
abb. Key-in-Lever
knob screw
n. a screw used to fasten a slip-on knob to a mortise lock spindle, or a set screw which maintains the position of a knob on a threaded mortise lock spindle
knob washer
n. a spacer used to shim the clearance between a slip-on mortise lock knob and the trim
knock-out tag
n. the portion of a key bow where a code number may be stamped and which is designed to be removed from the bow prior to normal usage
n. the part of a hinge that is formed to accept a hinge pin and act as a pivot surface for another knuckle
abb. 1. keyed random 2. key retaining
abb. keyway



Copyright 1989, 1990, 1995, 1996, 1997, 2000, 2001, 2002 LIST Council

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 Appendix
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