(n.) The finished component of a lock
visible on the edge of a door.
Source: Lock Industry Standards and Training
(LIST) Council
Face Cap
(n.) A finished cover, that may retain
a dust cover or serve as a plug retainer,
affixed to the face of some lock cylinders.
Source: Lock Industry Standards and Training
(LIST) Council
Face Plate
(n.) The finished, removable plate which
covers the front of some locks.
Source: Lock Industry Standards and Training
(LIST) Council
Factory Original Key
(n.) The out key furnished by the lock
manufacturer for a lock or cylinder.
Source: Lock Industry Standards and Training
(LIST) Council
Fail-Safe
(adj.) A feature of a security device
designed to release, for safety purposes,
during a power loss.
Source: Lock Industry Standards and Training
(LIST) Council
False Acceptance Rate
(n.) In a biometric access control device,
the number of incorrect submissions that
can be accepted as correct, typically
expressed as per cent, e.g. less than
0.0001%.
Source: Lock Industry Standards and Training
(LIST) Council
False Gate
(n.) A gate in a part of the operating
mechanism, which is not formed deeply
enough to allow operation of the lock.
Source: Lock Industry Standards and Training
(LIST) Council
False Rejection Rate
(n.) In a biometric access control device,
the number of correct submissions that
can be rejected as incorrect, typically
expressed as per cent, e.g. less than
0.001%.
Source: Lock Industry Standards and Training
(LIST) Council
FAR
(abb.) False Acceptance Rate
Source: Lock Industry Standards and Training
(LIST) Council
Feather Key
(n.) A type of flat key used for the
original Yale pin tumbler mortise locks.
Source: Lock Industry Standards and Training
(LIST) Council
Fence
(n.) 1. A projection on a lock bolt which
prevents movement of the bolt unless
it can enter gates of properly aligned
tumblers.
(n.) 2. Any locking element other than
a sidebar or shackle designed to enter
a tumbler's gate.
(n.) 3. A projection on the lever in
a combination lock that prevents the
lever from engaging the drive cam until
the proper combination is entered.
Source: Lock Industry Standards and Training
(LIST) Council
(n.) 1. Any lock used on a file cabinet.
(n.) 2. A plunger lock cylinder for a
gang lock normally used in a file cabinet.
Source: Lock Industry Standards and Training
(LIST) Council
Fill Program
(n.) A computer based code reference
which determines all combinations in
a code series that match a given partial
combination.
Source: Lock Industry Standards and Training
(LIST) Council
Filler Plate
(n.) A usually flat piece of material
used to; cover a hole or opening, provide
a foundation for mounting additional
hardware, or adjust the position of hardware
as mounted.
Source: Lock Industry Standards and Training
(LIST) Council
Fine Ward
(n.) A ward made of sheet metal, typically
installed as a bridge ward.
Source: Lock Industry Standards and Training
(LIST) Council
Finish
(n.) A material, coloring and/or texturing
specification.
Source: Lock Industry Standards and Training
(LIST) Council
Fire Alarm
(n.) A system designed to detect and
report conditions, which may indicate
presence of a fire.
Source: Lock Industry Standards and Training
(LIST) Council
Fire Door
(n.) A door constructed to provide a
specific degree of fire protection.
Source: Lock Industry Standards and Training
(LIST) Council
Fire Door Assembly
(n.) Any combination of a fire door,
frame, hardware and other accessories,
that together provides a specific degree
of fire protection to the opening.
Source: Lock Industry Standards and Training
(LIST) Council
Fire Exit Hardware
(n.) exit devices, which may legally
be installed, on fire doors. Distinguished
from other exit devices because it: 1.
is labeled for both fire and panic and;
2. has no means of locking the latch
in a retracted position.
Source: Lock Industry Standards and Training
(LIST) Council
Fire Separation
(n.) Construction designed to limit the
spread of fire in a structure.
Source: Lock Industry Standards and Training
(LIST) Council
Fireman’s Key
(n.) A key used to override normal operation
of elevators, bringing them to the ground
floor.
Source: Lock Industry Standards and Training
(LIST) Council
First Generation Duplicate
(n.) A key which was duplicated using
a factory original key or a code original
key as a pattern.
Source: Lock Industry Standards and Training
(LIST) Council
First Key
(n.) Any key produced without the use
of a pattern key.
Source: Lock Industry Standards and Training
(LIST) Council
Five Column Progression
(n.) A process wherein key bittings are
obtained by using the cut possibilities
in five columns of the key bitting array.
Source: Lock Industry Standards and Training
(LIST) Council
Five Pin Master Key
(n.) A master key for all combinations
obtained by progressing five bitting
positions.
Source: Lock Industry Standards and Training
(LIST) Council
Fixed Fly
(n.) In a combination lock, a fly that
does not move relative to the wheel it
is on.
Source: Lock Industry Standards and Training
(LIST) Council
Fixed Pin Hand Change Wheel
(n.) A combination wheel that uses pressed
or threaded pins as a fixed fly.
Source: Lock Industry Standards and Training
(LIST) Council
Fixed Rise (Chamber)
(n.) A plug and shell pin chamber design
associated with fixed rise pins.
Source: Lock Industry Standards and Training
(LIST) Council
Fixed Rise (Pin)
(adj.) Of or pertaining to a pin tumbler
which is designed to operate properly
only when its rotation capabilities are
limited or precluded.
Source: Lock Industry Standards and Training
(LIST) Council
Fixed Tumbler
(n.) A ward located within the tumbler
pack.
Source: Lock Industry Standards and Training
(LIST) Council
Flat Goods
(n.) Ancillary architectural hardware
such as push plates, mop plates, stretcher
plates, kick plates, etc.
Source: Lock Industry Standards and Training
(LIST) Council
Flat Steel Key
(n.) A flat type key made of steel.
Source: Lock Industry Standards and Training
(LIST) Council
Flat Type Key
(n.) A key which is completely flat on
both sides, usually used for warded or
lever tumbler locks.
Source: Lock Industry Standards and Training
(LIST) Council
Flexible Head Mortise Cylinder
(n.) An adjustable mortise cylinder which
can be extended against spring pressure
to a slightly longer length.
Source: Lock Industry Standards and Training
(LIST) Council
Floor Closer
(n.) A door closer installed below the
door at the floor surface, generally
also acting as a bottom pivot for the
door.
Source: Lock Industry Standards and Training
(LIST) Council
Floor Master Key
(n.) A master key which operates all
or most master keyed locks on a particular
floor of a building.
Source: Lock Industry Standards and Training
(LIST) Council
Floor Safe
(n.) A security container designed for
mounting below floor level with the top
surface flush with the finished floor.
Source: Lock Industry Standards and Training
(LIST) Council
Flush Bolt
(n.) A non-keyed deadbolt, with a one
piece escutcheon/faceplate, typically
mounted flush to door surfaces.
Source: Lock Industry Standards and Training
(LIST) Council
Flush Cup Pull
(n.) A flush pull with a circular cross-section.
Source: Lock Industry Standards and Training
(LIST) Council
Flush Pull
(n.) A recess in a door or drawer which
serves as a handle or grip.
Source: Lock Industry Standards and Training
(LIST) Council
Flush Ring
(n.) A ring, recessed into a door, which
swings out to serve as a handle.
Source: Lock Industry Standards and Training
(LIST) Council
Fly
(n.) The part of a combination wheel
pack or a drive cam that makes contact
with a similar part on an adjacent wheel
in the wheel pack and causes it to turn.
Source: Lock Industry Standards and Training
(LIST) Council
Fly Stop
(n.) The part of a combination lock wheel
that restricts the motion of a movable
fly.
Source: Lock Industry Standards and Training
(LIST) Council
Foot
(n.) The cam portion of the trunnion
assembly in some lever tumbler locks.
Source: Lock Industry Standards and Training
(LIST) Council
Foot Bolt
(n.) A bolt mechanism typically mounted
at the bottom of a door, and designed
to be easily operated by ones foot.
Source: Lock Industry Standards and Training
(LIST) Council
Forbidden Zone
(n.) On a combination lock dial, a range
of marks within which the last item of
the combination must not be set to provide
for proper lock operation.
Source: Lock Industry Standards and Training
(LIST) Council
Fork Lock
(n.) A motorcycle or bicycle lock which
prevents the front fork from rotating.
Source: Lock Industry Standards and Training
(LIST) Council
Four Column Progression
(n.) A process wherein key bittings are
obtained by using the cut possibilities
in four columns of the key bitting array.
Source: Lock Industry Standards and Training
(LIST) Council
Four Pin Master Key
(n.) A master key for all combinations
obtained by progressing four bitting
positions.
Source: Lock Industry Standards and Training
(LIST) Council
Frangible Shackle
(n.) A padlock shackle designed to be
broken easily.
Source: Lock Industry Standards and Training
(LIST) Council
Frangible Shackle Padlock
(n.) A padlock equipped with an easily
broken shackle.
Source: Lock Industry Standards and Training
(LIST) Council
Frangible Tumbler
(n.) A tumbler whose reference size may
be permanently altered, or established,
mechanically without removal from the
cylinder.
Source: Lock Industry Standards and Training
(LIST) Council
French Doors
(n.) A set of double doors composed of
many small glass panes and narrow stiles.
Source: Lock Industry Standards and Training
(LIST) Council
Friction Catch
(n.) A door or cabinet latching device
which contains no actuator and is released
by applying a measure of force in the
opening direction.
Source: Lock Industry Standards and Training
(LIST) Council
Friction Fence
(n.) A pivoting combination lock fence
that is usually mounted loosely to a
rotatable member that positions the fence
to test the cam and wheels for alignment
at drop in when the rotatable member
is turned in the correct direction.
Source: Lock Industry Standards and Training
(LIST) Council
Friction Hinge
(n.) A device with torque resistance
between two parts on a common axis.
Source: Lock Industry Standards and Training
(LIST) Council
Frictioned Plug
(n.) A type of clutch system permitting
both sides of a double profile cylinder
to operate the lock regardless of whether
the opposite plug is turned.
Source: Lock Industry Standards and Training
(LIST) Council
Front
(n.) The portion of a lock which provides
the means of mounting the locking device
to the edge of the door.
Source: Lock Industry Standards and Training
(LIST) Council
Front Drive
(adj.) Of or pertaining to a combination
lock with the drive cam located between
the dial and the wheel pack.
Source: Lock Industry Standards and Training
(LIST) Council
Front Reading (Dial)
(adj.) A safe dial that has graduations
on the face.
Source: Lock Industry Standards and Training
(LIST) Council
FRR
(abb.) False Rejection Rate
Source: Lock Industry Standards and Training
(LIST) Council
Full Lip Strike
(n.) A strike plate for a latch with
the lip extending the full height of
the strike.
Source: Lock Industry Standards and Training
(LIST) Council
Full Mortise
(adj.) Pertaining to a method of installation
in which only the faceplate and trim
is exposed. The lock case is installed
in a pocket in the door or drawer (v.)
to make a rectangular pocket in a door
or drawer that is only open on the edge
of the door or drawer.
Source: Lock Industry Standards and Training
(LIST) Council
Full Mortise Hinge
(n.) A type of hinge designed for mortising
into the edge of the door and into the
rabbet of a door frame.
Source: Lock Industry Standards and Training
(LIST) Council
Function
(n.) A set of operating features for
a particular type of lock or exit device
which make it suitable for a specific
application. The function is designated
by a classification name or standards
reference number. See ANSI or BHMA for
a specific listing.
Source: Lock Industry Standards and Training
(LIST) Council
Fusible Link
(n.) A relock trigger activated by heat.
Source: Lock Industry Standards and Training
(LIST) Council
Fusible Link Arm
(n.) A door closer arm which includes
a mechanism for holding a door open.
This mechanism has an element which,
when subjected to certain temperatures,
melts and allows the door to close.
Source: Lock Industry Standards and Training
(LIST) Council
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