(n.) A classification by Underwriters
Laboratories for doors with 3/4 hour
rated fire protection.
Source: Lock Industry Standards and Training
(LIST) Council
Cable Wired Remote Relocker
(n.) A spring loaded relock, triggered
by release of the attached wire.
Source: Lock Industry Standards and Training
(LIST) Council
Cam
(n.) 1. A lock or cylinder component
which transfers the rotational motion
of a key or cylinder plug to the bolt
works of a lock.
(n.) 2. The bolt of a cam lock.
Source: Lock Industry Standards and Training
(LIST) Council
Cam Lock
(n.) A complete locking assembly in the
form of a cylinder whose cam is the actual
locking bolt.
Source: Lock Industry Standards and Training
(LIST) Council
Cane Bolt
(n.) A surface mounted deadbolt designed
to be moved by hand via a 90º bend
in the bolt that serves as a handle.
Source: Lock Industry Standards and Training
(LIST) Council
Cap
(n.) 1. A spring cover for a single pin
chamber.
(n.) 2. A part which may serve as a plug
retainer and/or a holder for the tailpiece.
(v.) 3. To install a cap.
Source: Lock Industry Standards and Training
(LIST) Council
Capping Block
(n.) A holding fixture for certain interchangeable
cores which aids in the installation
of the caps.
Source: Lock Industry Standards and Training
(LIST) Council
Captured Combination Bit Position
(n.) The position where a movable key
insert is placed on a key.
Source: Lock Industry Standards and Training
(LIST) Council
Captured Hinge
(n.) A hinge system for safes where the
door may not be lifted off the body of
the safe without the removal of one of
the hinge blocks.
Source: Lock Industry Standards and Training
(LIST) Council
Card Access System
(n.) An access control system that utilizes
a controlled security card as the credential.
Source: Lock Industry Standards and Training
(LIST) Council
Card Holder
(n.) A person to whom a card has been
issued.
Source: Lock Industry Standards and Training
(LIST) Council
Card Reader
(n.) A device which interprets coding
resident on or in cards.
Source: Lock Industry Standards and Training
(LIST) Council
Carriage
(n.) 1. The movable assembly of a key
machine which supports the key vise(s).
(n.) 2. A changeable part of a clipper
that holds the key blank.
Source: Lock Industry Standards and Training
(LIST) Council
Carry Bar
(n.) The part of a multi-bolt safe boltworks
to which the bolts are attached.
Source: Lock Industry Standards and Training
(LIST) Council
Case
(n.) The housing or body of a lock.
Source: Lock Industry Standards and Training
(LIST) Council
Case Cover
(n.) The portion of a lock case which
is designed to be removable to allow
access to the mechanism.
Source: Lock Industry Standards and Training
(LIST) Council
Case Ward
(n.) Any ward directly attached to or
projecting from a lock case.
Source: Lock Industry Standards and Training
(LIST) Council
Casement Window
(n.) A window with a sash which pivots
or swings to open.
Source: Lock Industry Standards and Training
(LIST) Council
Catch
(n.) Any device that holds a door closed
and may be released by simply pushing
or pulling on the door.
Source: Lock Industry Standards and Training
(LIST) Council
CBOK
(abb.) Construction Breakout Key
Source: Lock Industry Standards and Training
(LIST) Council
Central Processing
(adj.) Of or pertaining to an access
control system in which all or most control
functions are performed by the main computer.
Source: Lock Industry Standards and Training
(LIST) Council
Central Station
(n.) A location designed for the express
purpose of processing status signals
for multiple alarm systems.
Source: Lock Industry Standards and Training
(LIST) Council
Certificate Of Occupancy
(n.) A document, granted by the authority
having jurisdiction, permitting occupancy
or use.
Source: Lock Industry Standards and Training
(LIST) Council
Chain Bolt
(n.) A spring biased bolt operated by
an attached chain, typically for mounting
to the top of a door.
Source: Lock Industry Standards and Training
(LIST) Council
Chain Lock
(n.) A device used to secure property
with interlocking links and secured on
both ends by a slide plate or a key locking
device.
Source: Lock Industry Standards and Training
(LIST) Council
Chamber
(n.) Any cavity in a cylinder plug and/or
shell which houses the tumblers.
Source: Lock Industry Standards and Training
(LIST) Council
Change Index
(n.) The point on a key changeable combination
lock dial ring to which the old and new
combinations must be dialed when changing
the combination.
Source: Lock Industry Standards and Training
(LIST) Council
Change Key
(n.) 1. A key which operates only one
cylinder or one group of keyed alike
cylinders in a keying system.
(n.) 2. Any device that is used to mechanically
or electronically allow resetting of
certain key or combination locks.
Source: Lock Industry Standards and Training
(LIST) Council
(n.) A key which can be recombinated
by exchanging and/or rearranging portions
of its bit or blade.
Source: Lock Industry Standards and Training
(LIST) Council
Changeable Lever
(n.) A lever tumbler typically made in
two or more pieces which can be variably
positioned with each other to change
the effective location of the gate.
Source: Lock Industry Standards and Training
(LIST) Council
Changeable Tumbler
(n.) A tumbler whose reference size can
be changed mechanically without removal
from the lock or cylinder.
Source: Lock Industry Standards and Training
(LIST) Council
Chassis
(n.) The part of a cylindrical lockset
that contains the actuating mechanism
and has a means for mounting trim and
a bolt.
Source: Lock Industry Standards and Training
(LIST) Council
Check Pin
(n.) A device resembling a bottom pin,
found in a non-traditional chamber, used
to restrict the rotation of the plug
unless a specific area of the key is
cut.
Source: Lock Industry Standards and Training
(LIST) Council
Cheek
(n.) A projection from a lock case that
serves as a guide or race for another
part.
Source: Lock Industry Standards and Training
(LIST) Council
Chubb Shackle
(n.) A hinged shackle with a pierced
hole for the bolt in its movable end.
Source: Lock Industry Standards and Training
(LIST) Council
CIL
(abb.) The title "Certified Institutional
Locksmith" as awarded by ILA.
Source: Lock Industry Standards and Training
(LIST) Council
Circular Strike
(n.) A typically round, finished strike,
usually driven into place in a drilled
hole.
Source: Lock Industry Standards and Training
(LIST) Council
CJIL
(abb.) The title "Certified Journeyman
Institutional Locksmith" as awarded
by ILA.
Source: Lock Industry Standards and Training
(LIST) Council
CJL
(abb.) The title Certified Journeyman
Locksmith as awarded by the Professional
Locksmith Association of Alberta.
Source: Lock Industry Standards and Training
(LIST) Council
CJS
(abb.) The title "Certified Journeyman
Safecracker" as awarded by NSO.
Source: Lock Industry Standards and Training
(LIST) Council
CK
(abb.) 1. Change Key
(abb.) 2. Control Key
Source: Lock Industry Standards and Training
(LIST) Council
Cladding
(n.) An outer casing, usually metallic,
typically filled with concrete to protect
a safe against theft or penetration.
Source: Lock Industry Standards and Training
(LIST) Council
Clamshell
(n.) The two piece housing (usually plastic)
that encases the upper steering column
and ignition lock on some automotive
applications.
Source: Lock Industry Standards and Training
(LIST) Council
Claw Bolt
(n.) A bolt with one or more fingers,
which extend out of the bolt and lock
behind the strike as the bolt reaches
the locked position.
Source: Lock Industry Standards and Training
(LIST) Council
Clear Opening
(n.) A portal providing clearance through
which passage is unhampered.
Source: Lock Industry Standards and Training
(LIST) Council
Clevis
(n.) A device to permanently attach a
chain to a padlock.
Source: Lock Industry Standards and Training
(LIST) Council
Clipper
(n.) A hand held key bitting punch, often
incorporating a trigger like handle.
Source: Lock Industry Standards and Training
(LIST) Council
Closed Gated
(adj.) Pertaining to a lever tumbler
whose gate is pierced into the body of
the tumbler. The lever(s) surround the
fence in both the locked and unlocked
positions.
Source: Lock Industry Standards and Training
(LIST) Council
Closed Knob
(n.) A knob without an opening in its
face.
Source: Lock Industry Standards and Training
(LIST) Council
Closed Loop
(n.) A detection circuit where discontinuity
in a branch will result in a reportable
condition.
Source: Lock Industry Standards and Training
(LIST) Council
Closer Size
(adj.) A numerical value related to the
applied force of a door closer, with
a larger number being a stronger force.
Older closers were assigned alphabetic
size designations, where A was the smallest.
Source: Lock Industry Standards and Training
(LIST) Council
Closet Latch
(n.) A latchset which has a turning device
with minimum projection in place of the
inside knob or lever.
Source: Lock Industry Standards and Training
(LIST) Council
Closet Spindle
(n.) A spindle with a thumbturn attached
to one end.
Source: Lock Industry Standards and Training
(LIST) Council
Closing Combinated
(adj.) Pertaining to a lever lock which
is automatically combinated to the last
key to extend the bolt.
Source: Lock Industry Standards and Training
(LIST) Council
Cloverleaf Cam
(n.) A style of mortise cylinder cam
with three lobes: a ball shaped longer
center, and angular projections on either
side.
Source: Lock Industry Standards and Training
(LIST) Council
Clutch
(n.) That part of a profile cylinder
which transfers rotational motion from
the inside or outside element to a common
cam or actuator.
Source: Lock Industry Standards and Training
(LIST) Council
CMIL
(abb.) The title "Certified Master
Institutional Locksmith" as awarded
by ILA.
Source: Lock Industry Standards and Training
(LIST) Council
CMK
(abb.) Construction Master Key
Source: Lock Industry Standards and Training
(LIST) Council
CMK'd
(abb.) Construction Master Keyed
Source: Lock Industry Standards and Training
(LIST) Council
CML
(abb.) The title "Certified Master
Locksmith" as awarded by ALOA.
Source: Lock Industry Standards and Training
(LIST) Council
CMS
(abb.) The title "Certified Master
Safecracker" as awarded by NSO.
Source: Lock Industry Standards and Training
(LIST) Council
CMST
(abb.) The title "Certified Master
Safe Technician" as awarded by SAVTA.
Source: Lock Industry Standards and Training
(LIST) Council
CO
(abb.) Certificate of Occupancy
Source: Lock Industry Standards and Training
(LIST) Council
Code
(n.) 1. A designation assigned to a particular
key combination for reference when additional
keys or cylinders may be needed.
(n.) 2. A standard for Life Safety, structural
integrity, fire safety, etc., either
incorporated into the statutes of a given
jurisdiction, or a model standard.
Source: Lock Industry Standards and Training
(LIST) Council
Code Key
(n.) A key cut to a specific code rather
than duplicated from a pattern key. it
may or may not conform to the lock manufacturer's
specifications.
Source: Lock Industry Standards and Training
(LIST) Council
Code Original Key
(n.) A code key which conforms to the
lock manufacturer's specifications.
Source: Lock Industry Standards and Training
(LIST) Council
Code Series
(n.) An ordered sequence of unique codes
related to specific key combinations,
key sections and manufacturers.
Source: Lock Industry Standards and Training
(LIST) Council
Coercivity
(adj.) The measure (usually expressed
in Oersteds) of a magnetic material's
resistance to being recorded or erased.
Magnetic stripe cards are either low
coercivity or high coercivity.
Source: Lock Industry Standards and Training
(LIST) Council
Comb Attack
(n.) 1. A pin tumbler defeat tactic using
a series of straight pins or teeth on
a single tool, intended to push the pin
stack past the shear line.
(n.) 2. A defeat tactic used to force
a spring cover off a pin tumbler cylinder.
Source: Lock Industry Standards and Training
(LIST) Council
Combinate
(v.) To set a combination in a lock,
cylinder, or key.
Source: Lock Industry Standards and Training
(LIST) Council
Combination
(n.) The group of numbers which represent
the bitting of a key and/or the tumblers
of a lock or cylinder.
Source: Lock Industry Standards and Training
(LIST) Council
Combination Lock
(n.) A lock which is operated by local
input of a specific series or sequence
of numbers or letters.
Source: Lock Industry Standards and Training
(LIST) Council
Combination Wafer
(n.) A type of disc tumbler used in certain
binary type disc tumbler key-in-knob
looks. Its presence requires that a cut
be made in that position of the operating
key(s).
Source: Lock Industry Standards and Training
(LIST) Council
Combination Wheel
(n.) A wheel type tumbler in a combination
lock.
Source: Lock Industry Standards and Training
(LIST) Council
Compensate Drivers
(v.) To select longer or shorter top
pins, depending on the length of the
rest of the pin stack, in order to achieve
a uniform pin stack height.
Source: Lock Industry Standards and Training
(LIST) Council
Complementary Keyway
(n.) Usually a disc tumbler keyway used
in master keying. It accepts keys of
different sections whose blades contact
different bearing surfaces of the tumblers.
Source: Lock Industry Standards and Training
(LIST) Council
Composite Blank
(n.) A blank designed to enter two or
more simplex keyways.
Source: Lock Industry Standards and Training
(LIST) Council
Composite Keyway
(n.) A keyway which has been enlarged
to accept more than one key section,
often key sections of more than one manufacturer.
Source: Lock Industry Standards and Training
(LIST) Council
Compound Bitted Key
(n.) A key with at least one compound
cut.
Source: Lock Industry Standards and Training
(LIST) Council
Compound Cut
(n.) A bitting which has another bitting
dimension within its dimensions.
Source: Lock Industry Standards and Training
(LIST) Council
Compound Lever
(n.) A lever tumbler that has two or
more distinct sweeps contacted by two
or more different keys.
Source: Lock Industry Standards and Training
(LIST) Council
Concealed Screw Rose
(n.) KIK or KIL trim that snaps into
place to hide mounting screws.
Source: Lock Industry Standards and Training
(LIST) Council
Concealed Shell Cylinder
(n.) A specially constructed (usually
mortise) cylinder. Only the plug face
is visible when the lock trim is in place.
Source: Lock Industry Standards and Training
(LIST) Council
Concealed Vertical Rod Exit Device
(n.) A vertical rod exit device whose
rods and header / threshold bolts are
concealed within the door.
Source: Lock Industry Standards and Training
(LIST) Council
Concrete Case
(n.) An enclosure for mounting a floor
closer.
Source: Lock Industry Standards and Training
(LIST) Council
Configured Pin
(n.) A bottom pin which is designed not
to rotate along its long axis, often
associated with off-centerline chambers.
Source: Lock Industry Standards and Training
(LIST) Council
Constant Cut
(n.) Any bitting(s) which are identical
in corresponding positions from one key
to another in a keying system. They usually
serve to group these keys together within
a given level of keying, and/or link
them with keys of other levels.
Source: Lock Industry Standards and Training
(LIST) Council
(n.) A key used by some manufacturers
to render all construction master keys
permanently inoperative.
Source: Lock Industry Standards and Training
(LIST) Council
Construction Core
(n.) An interchangeable or removable
core designed for use during the construction
phase of a building. The cores are normally
keyed alike and, upon completion of construction,
they are to be replaced by the permanent
system's cores.
Source: Lock Industry Standards and Training
(LIST) Council
Construction Hole
(n.) A recess or pocket designed to receive
ball bearings in lost-ball keying. The
size and/or shape of the recess is such
that a pin tumbler cannot enter it.
Source: Lock Industry Standards and Training
(LIST) Council
Construction Master Key
(n.) A key normally used by construction
personnel for a temporary period during
building construction. It may be rendered
permanently inoperative without disassembling
the cylinder.
Source: Lock Industry Standards and Training
(LIST) Council
Construction Master Keyed
(adj.) Of or pertaining to a cylinder
which is or is to be operated temporarily
by a construction master key.
Source: Lock Industry Standards and Training
(LIST) Council
Contact Area
(n.) The gate area in a combination lock
drive cam where the lever nose does not
contact the drive cam.
Source: Lock Industry Standards and Training
(LIST) Council
Contact Point (s)
(n.) The area on each side of the drive
cam gate that the lever nose makes contact
with. Most locks have a left contact
point and a right contact point.
Source: Lock Industry Standards and Training
(LIST) Council
Contact Switch
(n.) A electrical, magnetic or mechanical
device that triggers a circuit(s) to
open or closed depending on the application.
Source: Lock Industry Standards and Training
(LIST) Council
Contactless Smart Card
(n.) A card, conforming to the physical
characteristics specified in ISO 7813 & 10536,
which contains one or more integrated
circuits and does not use contacts to
obtain power and allow interface to external
equipment.
Source: Lock Industry Standards and Training
(LIST) Council
Continuous Duty
(adj.) Designed to sustain application
of power for extended periods.
Source: Lock Industry Standards and Training
(LIST) Council
Control Chamber
(n.) In an interchangeable or removable
core, any chamber which has a control
shear line, which is different from the
operating shear line.
Source: Lock Industry Standards and Training
(LIST) Council
Control Cut
(n.) Any bitting which operates the retaining
device of an interchangeable or removable
core.
Source: Lock Industry Standards and Training
(LIST) Council
Control Dimension
(n.) In certain interchangeable or removable
cores, the distance between the operating
shear line and the control shear line,
expressed either in units of the increment
or as a measurement.
Source: Lock Industry Standards and Training
(LIST) Council
Control Key
(n.) 1. A key whose only purpose is to
remove and/or install an interchangeable
or removable core.
(n.) 2. A bypass key used to operate
and/or reset some combination type locks.
(n.) 3. A key which allows disassembly
of some removable cylinder locks.
Source: Lock Industry Standards and Training
(LIST) Council
Control Lug
(n.) That part of an interchangeable
or removable core-retaining device which
locks the core into its housing.
Source: Lock Industry Standards and Training
(LIST) Council
Control Number
(n.) A number used to calculate the size
of the build-up pin when; (a) the sizes
of bottom and master pins are known,
or (b) the bitting depths of all operating
keys are known.
Source: Lock Industry Standards and Training
(LIST) Council
Control Shear Line
(n.) The shear line which allows operation
of the control lug of an interchangeable
or removable core.
Control Sleeve
(n.) The part of an interchangeable or
removable core retaining device which
surrounds the plug.
Source: Lock Industry Standards and Training
(LIST) Council
Controlled Cross Keying
(n.) A condition in which two or more
different keys of the same level of keying
and under the same higher level key(s)
operate one cylinder by design; e.g.,
XAA1 operated by AA2 (but not XAA1 operated
by AB1).
Note: This condition could severely limit
the security of the cylinder and the
maximum expansion of the system when
(1) more than a few of these different
keys operate a cylinder, or (2) more
than a few differently cross keyed cylinders
per system are required.
Source: Lock Industry Standards and Training
(LIST) Council
Controller
(n.) A device that has decision making
capability by way of authentication or
lookup in a database. It serves a control
function by having output relays or other
interfaces with other devices which may
include other controllers, electric strikes,
alarms, or printers.
Source: Lock Industry Standards and Training
(LIST) Council
Convertible Dial
(n.) A dial that is designed to readily
accept a key locking core at any time.
Source: Lock Industry Standards and Training
(LIST) Council
Coordinator
(n.) In conjunction with a pair of doors,
a device designed to cause the inactive
leaf to close first.
Source: Lock Industry Standards and Training
(LIST) Council
Core
(n.) A complete unit, often with a “figure
eight” shape, which usually consists
of the plug, shell, tumblers, springs,
plug retainer and spring cover(s). It
is primarily used in removable and interchangeable
core cylinders and looks.
Source: Lock Industry Standards and Training
(LIST) Council
Corner Bracket
(n.) A door closer mounting plate attached
to the upper corner of the jamb.
Source: Lock Industry Standards and Training
(LIST) Council
CPL
(abb.) The title "Certified Professional
Locksmith" as awarded by ALOA.
Source: Lock Industry Standards and Training
(LIST) Council
CPP
(abb.) “Certified Protection Professional” as
awarded by ASIS.
Source: Lock Industry Standards and Training
(LIST) Council
CPS
(abb.) The title "Certified Professional
Safe Technician" as awarded by SAVTA.
Source: Lock Industry Standards and Training
(LIST) Council
Crane Hinge
(n.) A three leaf hinge assembly with
two of the leaves being mounted to the
body and door and the third only to the
other two leaves.
Source: Lock Industry Standards and Training
(LIST) Council
Credential
(n.) Any identifying or authorizing instrument,
other than a mechanical key, that can
cause entry to be allowed.
Source: Lock Industry Standards and Training
(LIST) Council
Cremone Bolt
(n.) A surface mounted, top and bottom
locking, deadbolt mechanism operated
by a central handle.
Source: Lock Industry Standards and Training
(LIST) Council
CRL
(abb.) The title "Certified Registered
Locksmith" as awarded by ALOA.
Source: Lock Industry Standards and Training
(LIST) Council
Cross Bore
(n.) A hole drilled into the face of
a door where a bored or interconnected
lockset is to be installed.
Source: Lock Industry Standards and Training
(LIST) Council
Cross Keying
(n.) The deliberate process of combinating
a cylinder (usually in a master key system)
to two or more different keys which would
not normally be expected to operate it
together.
Source: Lock Industry Standards and Training
(LIST) Council
(n.) The portion of the key blade which
contains the cuts.
Source: Lock Industry Standards and Training
(LIST) Council
Cut Key
(n.) A key which has been bitted or combinated.
Source: Lock Industry Standards and Training
(LIST) Council
Cut Root
(n.) The bottom of a key cut.
Source: Lock Industry Standards and Training
(LIST) Council
Cut Root Shape
(n.) The shape of the bottom of a key
cut. It may have a flat or radius of
a specific dimension, or be a perfect "V".
Source: Lock Industry Standards and Training
(LIST) Council
Cutaway
(adj.) 1. Of or pertaining to a device
with material removed or a transparent
cover to expose and demonstrate a mechanism
or feature.
(n.) 2. Any cutaway product.
Source: Lock Industry Standards and Training
(LIST) Council
Cutter
(n.) The part of a key machine which
makes the cuts into the key blank.
Source: Lock Industry Standards and Training
(LIST) Council
Cutter Guard
(n.) A shield over a key machine cutter
to protect the operator.
Source: Lock Industry Standards and Training
(LIST) Council
Cylinder
(n.) A complete operating unit which
usually consists of the plug shell, tumblers,
springs, plug retainer, a cam/tailpiece
or other actuating device, and all other
necessary operating parts.
Source: Lock Industry Standards and Training
(LIST) Council
Cylinder Blank
(n.) A dummy cylinder which has a solid
face and no operating parts.
Source: Lock Industry Standards and Training
(LIST) Council
Cylinder Clip
(n.) A spring steel device used to secure
some types of cylinders.
Source: Lock Industry Standards and Training
(LIST) Council
Cylinder Collar
(n.) A plate or ring installed under
the head of a cylinder to improve appearance
and/or security.
Source: Lock Industry Standards and Training
(LIST) Council
Cylinder Guard
(n.) A protective cylinder mounting device.
Source: Lock Industry Standards and Training
(LIST) Council
Cylinder Key
(n.) A broad generic term including virtually
all keys for pin and disc tumbler locks.
Source: Lock Industry Standards and Training
(LIST) Council
Cylinder Lock
(n.) Any lock that is operated by a cylinder
key.
Source: Lock Industry Standards and Training
(LIST) Council
Cylindrical Lockset
(n.) A bored lockset whose latch or bolt
locking mechanism is contained in the
portion installed through the cross-bore.
Source: Lock Industry Standards and Training
(LIST) Council
