Locksmith Guide London

Locksmith Terms – Locksmiths London

Related terms along with their meanings locksmith glossary section here.

Access Control – any barrier or device, either natural or artificial, that limits or prohibits, free or unlimited access

Access Control Cylinder – a substitute for a mechanical cylinder which incorporates electronic access control and allows the first host lock to operate without additional wiring or hardware modifications

Access Control Key Fob – any device besides a key meant to allow an expression to be utilized and persisted a key ring

Active Leaf Door – the door of a pair on which the active or locking hardware is mounted

Actuator – a device, usually connected to a cylinder, which, when activated, may cause a lock mechanism to work

After Hours Depository – a secure locker or safe where components of value might be left beyond hours

Alarm System – something of electrical and/or electronic components which detect and report dangers, like fire or intrusion

Anti Strike Plate – A device fitted to the door or frame to halt the bolt or latch from being attacked.

Architectural Hardware – describes all fittings to a door, window or house. Such as – correspondence box, house numbers, handles, door knobs, hinges etc

Attack Resistant – design qualities of a creation that render brute force physical defeat methods less efficient or ineffective

Automatic Closing – pertaining to a door that’s built with a door closer, or any other device to shut it without manual intervention. Frequently within Life Safety and fire code requirements.

Automatic deadbolt – a deadbolt meant to extend itself fully in the event the door is closed

Auxillary Lock – any lock positioned in addition to the primary lock set


Back Plate – a thin little bit of metal, usually which has a concave portion, used with machine screws to fasten certain kinds of cylinders to a door

Back Check – the resistance provided by a door closer being a door is opened

Back Set – the space relating to the centre of a cross-bore along with the bolt edge of a door or drawer

Ball Catch – a latch which uses spring pressure to force a ball bearing right into a recess in their strike

Barrel Bolt – a surface mounted slide bolt with a cylindrical shape

Barrel Key – a sort of bit key which has a hole drilled in the shank from the tip

Bell Box (sounder box) – the protective enclosure for a bell or any other alarm sounding device

Bicycle Padlock – a padlock with plenty of shackle clearance to secure a bicycle

Bike Lock – A lock designed especially for lock a bike. modern bike locks use tough metals that prevent hack sawing.

BI Fold Door – a door with several sets of hinges, the additional set(s) allows the door on an accordion action when opened

Biometric Lock – of or pertaining to a lock which has a hybrid mechanism, section of the mechanism identifies a physical attribute like finger print, voice print, etc. while another part can be a mechanical mechanism

Bit – the section of the key which serves as the blade, usually for use in a warded or lever tumbler lock

Bit Height – a measurement from the post of a bit key outward to the end from the bit

Bit Key – a key with a number of projecting bits

Bit Thickness – a measurement from the bit from one side to the other side

Bit Width – as inserted right into a lock, a measurement from the leading edge to the trailing edge of a bit

Bitting Depth – the depth of a cut that’s made in the blade of a key

Bitting Position – the place of a key cut

Blade – the part of a key that might offer the cuts and/or millings

Blank – an uncut key

Body – the part of a lock assembly into which all the operating components are mounted, see also case

Bolt – any movable projection which blocks the movement of just one object relative to another

Bow – the part of the key which serves being a grip or handle

Bow Stop – a sort of stop located near the key bow

Bow to Tip – a specification that a bitting combination is recorded starting with the bow and proceeding to the tip

Bullet Lock – a lock used mostly on shutters. Once the lock has been inserted into its housing it locks automatically. only unlocked with a key. Widely used inside the UK on shop fronts.

Bump Key – a lock picking key with uniform steeples between cuts that is forced further in the lock via impact

Burglar Alarm – something meant to detect and report conditions, that might indicate intrusion or attempted intrusion

Burglar Resistant – of or pertaining to a security container meant to resist forcible entry for a specified period of your time determined by the rating from the container

Button Know – the knob in a key-in-knob lock that includes a push or turn button

Bypass Key – the key which operates a key override cylinder

Bypass Tool – a device that neutralizes the security of a locking device, or its application hardware, often taking advantage of a design weakness


Cam – a lock or cylinder component which transfers the rotational motion of a key or cylinder plug to the bolt works of a lock 2. the bolt of a cam lock

Cam Lock – a complete locking assembly inside the form of a cylinder whose cam could be the actual locking bolt

Card Access System – an access control system that utilizes a controlled security card because credential

Card Holder – someone to whom a card has been issued

Card Reader – a device which interprets coding resident on or even in cards

case – the housing or body of a lock

Case Cover – the portion of a lock case that’s meant to be removable to allow for access to the mechanism

Casement Window – a window which has a sash which pivots or swings to open up

Case Ward – any ward directly attached with or projecting from your lock case

Catch – any device that holds a door closed and could be released through pushing or pulling on the door

CCW – Counter Clockwise

Central Locking – a spot suitable for the express function of processing status signals for multiple alarm systems

Combination – the band of numbers which represent the bitting of a key and/or tumblers of a lock or cylinder

Combination Lock – a lock that’s operated by local input of a specific series or sequence of numbers or letters

Combination Wheel – a wheel type tumbler in a combination lock

Contact Point – the spot on each side from the drive cam gate the lever nose makes exposure to. Most locks possess a left contact point plus a right contact point.

Contact Switch – electrical, magnetic or mechanical device that creates a circuit(s) to open up or closed depending for the application

contactless Smart Card – a card, conforming to the physical characteristics specified by ISO 7813 & 10536, which contains a number of integrated circuits and will not use contacts to acquire power and allow interface to external equipment

Cupboard Latch – a latching mechanism typically surface mounted to the beyond cabinet doors or drawers

Cut Edge – the section of the key blade which contains the cuts

Cut Key – a key which has been bitted or cut to adjust to a lock

Cylinder – a complete operating unit which usually consists from the plug shell, tumblers, springs, plug retainer, a cam/tailpiece or any other actuating device, and all sorts of other necessary operating parts

Cylinder Guard – a protective cylinder mounting device

Cylinder Key – a diverse generic term including the majority of keys for pin and disc tumbler locks

Cylinder Lock – any lock that is operated with a cylinder key

Cylindrical Lock Set – a bored lock set whose latch or bolt locking mechanism is included in the portion installed with the cross-bore


Deadbolt – a bolt, which requires a deliberate action to supply, and which resists end pressure inside the unlocking direction when fully extended

Deadlock – a lock which incorporates a deadbolt

Deadlocking – regarding any feature which, when fully engaged, resists tries to move the latch or bolt inside the unlocking direction through direct pressure

Deadlocking Latch – a latchbolt which has a deadlocking mechanism

Decode – to determine a key combination by physical measurement of a key and/or cylinder parts

Degree of Rotation – a specification for your angle from which a cut is made into a key blade as referenced from the perpendicular; e.g., right (R or 2), left (L or 1) or center (= perpendicular) (C). This specification is usually employed for some high security keys.

Delayed Action Closer – one with a specfic hold-open interval before moves a door toward the latching position

Dimple Key – a key whose cuts are drilled or milled into its blade surfaces. The cuts normally don’t change the blade silhouette.

Door Closer – a device meant to regulate the closing of a door automatically by various means

Door Puller – something meant to open a secure deposit box by forcibly pulling the door and damaging the lock

Door Viewer – a device with a number of lenses, mounted in a door at eye level, allowing a small view

by way of a door

Double Bitted Key – a key typically bitted on two opposite surfaces

Double Locking – of or pertaining to a lock with a number of bolts with different functions, typically a latch plus a deadbolt

Double Throw Bolt – a deadbolt which has two distinct extended positions, as both versions are deadlocked

Drawback Lock or Latch – a latch/lock whose latch is disengaged by pushing or pulling an actuator toward the hinge side from the jamb

Drill Point – the precise measurement from the location accustomed to drill a locked up container to effect a gap

Dummy – regarding any type of non-active device sent applications for aesthetic purposes

Duplicate Key – any key reproduced from your pattern key

Dust Cover – a device meant to prevent foreign matter from entering a mechanism through the key-way


Electric Strike – an electro-mechanical strike, which secures or releases the latch via applied current

Electronic Access Control – access control which uses electricity

Emergency Code – in the electronic lock, a factory-set or user-set code or combination that can open the lock a predetermined number of times

Emergency escape mechanism – an exit device for a vault

Engineers Key – a selective master key that’s employed by maintenance personnel to work many locks under different master keys in something of three or maybe more degrees of keying

Entry/Exit Delay – a security or access control feature allowing a specific time lapse relating to the activation of a switch along with the activation of a secondary component

Escutcheon – a surface mounted trim which reinforces the looks and/or security of a lock installation

Espagnolette – a top and bottom locking system with hooks at either end which rotate to draw a door or window fully closed

Exit Device – a door lock/latch mechanism which releases inside the direction of exit travel via a bar or panel extending throughout the major width of the door

Exit Door – 1. a door which has no provision for ingress, 2. a door which fills some or all the code requirement for safe egress from the occupant load from your building or portion of a building

Extractor Key – something which normally removes part of a two-piece key or blocking device from a key-way


Face Plate – the finished, removable plate which covers leading of some locks

Factory Original Key – the cut key furnished by the lock manufacturer for a lock or cylinder

Fail Safe – a feature of a security device meant to release, for safety purposes, after a power loss

Fail Secure – a feature of a security device meant to remain locks for security purposes after a power loss

Finish – a fabric, coloring and/or texturing specification

Fire Alarm – something meant to detect and report conditions, that might indicate presence of a fire

Fire Door – a door constructed to supply a specific a higher level fire protection

Fire Door assembly – any combination of a fire door, frame, hardware and other accessories, that together provides a specific a higher level fire protection to the opening

Fire Exit Hardware – exit devices, that might legally be installed, on fire doors. Distinguished using their company exit devices as it:

1.is labeled for both fire and panic and;

2.does not have any method of locking the latch in a retracted position

Fireman’s Key – a key accustomed to override normal operation of elevators, bringing them to the ground floor

First Generation Key – a key which has been duplicated using a factory original key or possibly a code original key being a


Floor Safe – a burglar container suitable for mounting below floor level with all the top surface flush with all the finished floor

Flush Bolt – a non-keyed deadbolt, which has a one piece escutcheon/faceplate, typically mounted flush to door surfaces

Forced Entry – entry or bypass techniques which leave obvious damage to the lock or enclosure

French Doors – some double doors composed of many small glass panes and narrow stiles


Garage Door Lock – a rim lock mechanism designed for use with an overhead door, which mechanism has a spring loaded bolt which automatically locks the door’s bolt mechanism

Gate – a notch cut in the edge of a tumbler to just accept a fence or sidebar

Grand Master Key System – an expert key system that has exactly three degrees of keying

Great Grand master Key System – an expert key system that has exactly four degrees of keying


Handed – regarding hardware that’s manufactured limited to application on doors which has a specific orientation

Handle Set – a complete lock or latch assembly which incorporates a pitcher handle

Hard Plate – a tempered barrier placed relating to the lock along with the outside of a safe to inhibit drilling

Hasp – a hinged metal strap meant to be passed more than a staple and secured in place

High Security Cylinder – a cylinder that offers a larger a higher level capacity drilling or any other varieties of forcible entry and a number of from the following: picking, impressioning, or key duplication

High Security Key – a lock operating device that offers additional defense against its duplication, and/or provides integral features precluding bypass/neutralization of a lock

Hold Open – a function of self latching hardware allowing a lock to be set in a non-latching mode. A function of a door closer, or separate hardware device, allowing the door to be retained in the open position

Hold Back – a function of some self latching locks allowing selective retention from the bolt to avoid latching in the event the door is closed

Hollow Metal Door – typically a door made of sheet metal on all surfaces and lightly reinforced to restore rigid

Hook Bolt – a lock bolt shaped inside the general outline of a hook. Normally applied to sliding doors or where spreading from the frame and door can be a possible attack.

Hybrid Locking System – a locking system which derives its security from several different technologies operated from the same get into one device, e.g. mechanical/electronic, mechanical/magnetic, etc.


Jamb – the vertical components of a door frame

Jimmy – “to jimmy” a door is to open up it by method of force.


KA – Keyed alike

KD – keyed different

Keep – recess a bolt or latch with sit in when lock is locked.

Key – a properly combinated device that’s, or most closely resembles, these devices specifically intended from the lock manufacturer to work the attached lock

Key Blank – any material manufactured to the proper size and configuration allowing entry in the key-way of a specific locking device and could then be bitted being an operating key for your device

Key Cabinet – a cabinet with hooks, velcro, or any other means meant to store keys systematically

Key Coding machine – a key machine suitable for producing code keys. It may or may well not also serve being a duplicating machine.

Key Cut Profile – the design of a key cut, such as the cut angle along with the out root shape

Key Duplication Machine – a key machine that’s meant to make copies from your pattern key

Key Extractor – something designed for use to remove a broken or stuck key from your lock

Key Gauge – a usually flat device which has a cutaway portion indexed which has a given list of depth or spacing specifications. It is accustomed to help determine the mixture of a key.

Key Holder – someone to whom a key has been issued

Key in Knob Cylinder – a cylinder found in a key-in-knob lock set

Key in Knob Lock Set – any lock set with a key operated cylinder in a number of knobs

Key Lock – regarding a device operated with a mechanical key, rather than combination, electronics, etc.

Key Machine – any machine meant to cut keys, See also “key coding machine” and “key duplicating machine.”

Key Manipulation – manipulation of your incorrect get into order to work a lock or cylinder

Key Override – 1. a provision allowing interruption or circumvention of normal operation of a combination lock or electrical device

Key override – 2. adj. of or regarding this type of provision, as with “key override cylinder”

Keyed Alike – of or regarding several looks or cylinders which may have or are going to have the same combination. They may or may well not be part of a keying system

Keyed Different – of or pertaining to a band of locks or cylinders, everyone of that’s or perhaps is to be combinated differently from the others. They may or may well not be part of a keying system.

Keyed Random – of or pertaining to a cylinder or band of cylinders selected from your limited inventory of different key changes. Duplicate bittings may occur.

Key Hole – the opening whereby a non-cylinder key must pass to get in a lock

Key Way – 1. the opening in a lock or cylinder that’s shaped to just accept key bit or blade of a proper configuration

Key Way – 2. the precise cross sectional configuration of a key-way as viewed from the front. It just isn’t necessarily the same as the key section.

Kick Plate – a protective plate mounted for the bottom of a door to avoid problems for minimize damage to the door


Laminated Paldock – a padlock whose case is made of separate plates usually riveted together

Latch – a mechanical or magnetic door fastener which can automatically keep a door, gate, etc., closed

Latch – 2. v. engagement of a latch when a door, gate, etc. is pushed or pulled closed

Latch Bolt – a spring actuated bolt, normally with a number of beveled surfaces, which, when aligned with all the strike, engages it automatically

Latch Guard – a plate or mixture of interlocking pieces meant to block access to the edge of a latch in the event the door is shut

Leaf – 1.One half or section of a hinge 2. One door in a list of double doors 3. One section of a multiple section door

Lever – an element in a mortice lock. usually 5 lever in a UK insurance approved mortice lock, several levers in internal mortice locks. known collectively being a “lever pack”

Lock – any device which prevents access or use by requiring special knowledge or equipment

Lock Bumping – a picking technique that utilizes a configured key forcefully impacted in the key-way

Lock-in – of or pertaining to a combination lock that is inoperable since the last number of a combination is defined inside the forbidden zone

Lock Out – any situation in which the normal operation of a lock or cylinder is prevented

lock Set – a locking device, filled with trim, mounting hardware and strike

Locksmith – an individual with all the knowledge and ability to select, install, service and bypass all the aspects of a or mechanical lock


Magnetic Contact – a switch activated by magnetic attraction or repulsion

Magnetic Latch – a latch which uses magnetic force to remain engaged with its strike

Magnetic Stripe – a thin layer of fabric comprising oriented ferromagnetic oxide particles held together with a resin binder and bonded to a non-magnetic surface like paper or plastic

Manipulate – a dialling process typically used with combination locks to determine operational status from the lock, potential combinations or attempt to free the mechanism

Manipulation – a opening way for mechanical combination locks which uses the tolerances of this lock to determine a gap combination.

Manipulation Proof – a mix lock with features meant to prevent determining the mixture without physical attack

Manufacturer Reset Code – in the electronic lock, a factory-set or user-set code or combination that can restore the factory default settings

Master Blank – a key blank used in a complementary key-way lock, on which just the master key combination is intended to be cut

Master Code – in the electronic lock, a factory-set or user-set combination that really must be used before programming the lock

Master Disc – a particular disc tumbler with multiple gates to get a sidebar, see also “master pin” #1, see also “stepped tumbler”.

Master Key – 1. a key which operates all the master keyed locks or cylinders in a group, each lock or cylinder usually operated by its change key

Master Key 2 v. to combinate several locks or cylinders such that each is

operated by its change key along with with a master key for your entire group, 3. n. an automotive key which

operates all or most locks over a vehicle and then there is also a valet key employed

Master Key System – 1. any keying arrangement that has several degrees of keying

Master Key System – 2. a keying arrangement that has exactly two degrees of keying

Master Keyed – 1. of or pertaining to a cylinder or band of cylinders which can be or are to be combinated so that all could be operated by their unique change key(s) through additional key(s) called master key(s) 2. a warded lock whose warding has been meant to allow different hierarchies of keys to work

Metal Besk Lock – a cabinet lock which has a vertically sliding bolt located with the rear from the cylinder

Milling Cutter – a key machine cutter with relatively coarse pitch teeth as opposed to a rotary file cutter

Mis-cut – of or regarding a key which has been cut incorrectly 2. n. a mis-cut key

MK – master key

MK’d – master keyed

Mortise – 1. v. to prepare by removing stock material from the edge of a door, drawer, frame or opening to make a recess allowing the flush fit or insetting of relevant lock or any other hardware, 2. n. the cavity prepared by mortising, 3. adj. of or pertaining to a locking device meant to fit in a mortise preparation

Mortise Cylinder – a threaded cylinder typically found in mortise locks of American manufacture

Mortise Exit Device – an exit device suitable for mortise installation

Mortice Lock Set – a lock set the case of that’s meant to fit in a mortise inside the edge of a door or drawer

Motion Alarm Lock – a burglar locking device which audibly alerts upon sensing motion

Movement – a mechanical, electronic or electro-mechanical timer, meant to inhibit the last unlocking of a combination lock or timelock

MP – manipulation proof

MR – manipulation resistant

MS – maximum security

MPL – Multi point lock, as applied to UPVC doors inside the UK. a lock that has multiple bolt which can be thrown and withdrawn simultaneously, often in multiple direction

Mushroom Pin – a pin tumbler, usually a top pin, which resembles a mushroom. It is usually accustomed to increase pick resistance


Neck – (of key) 1. the portion of a bit key relating to the shoulder along with the bit(s) 2. the portion of a cylinder key relating to the shoulder along with the bow

Negative Locking – locking achieved solely by spring pressure or gravity which prevents a key cut too deeply from operating a lock or cylinder

Night Latch – a rim mounted auxiliary latch bolt

Non Handed – regarding hardware that is manufactured in a way, allowing installation on doors from a orientation without requiring modification or adjustment to allow for the door orientation

Non Original Key Blank – any key blank besides an original

Non Removable Key – a key that has a number of cuts on it which trap the key inside the lock upon insertion

Non Reversible – door hardware whose hand cannot be changed inside the field


Original Key Blank – a key blank supplied from the lock manufacturer to adjust to that manufacturer’s specific product

Overhead Concealed Closer – a better suitable for installation beyond view in the door header area

Overhead Stop – a door stop which contacts the door at the top

Overlifting – 1. a picking technique using a blank answer to boost the tumblers to the top of the key-way

Overlifting – 2. a lock defeat process which uses a comb attack to bypass the conventional locking combination

Overlifting – 3. a process that moves a spring loaded tumbler after dark operating point

Override Code – in the electronic lock, a factory-set or user-set combination that can always open the lock

Override Combination – in a few locks which has a user changeable combination, a second combination allowing access at all times. It is usually factory set and could not field changeable.


Paddle Handle – a sort of actuator that’s relatively flat and operates the mechanism when pivoted with an axis near one end

Padlock – a detachable and portable lock which has a shackle which locks into its case

Panic Button – any switching device in the home security system meant to be activated with a person in a panic situation. It creates a sudden alarm condition

Paracentric – 1. of or regarding a key-way with a number of wards on each side projecting after dark vertical centre distinctive line of the key-way to hinder picking 2. of or regarding a key blank made to get in such a key-way

Parallel Arm – a sort of door closer and/or closer mounting which leaves the arm generally parallel to the door face when closed

Passage Set – a latch set

Passive anti theft system – an RFID home alarm system employed by Ford which enables the vehicle’s ignition system when a properly recognized transponder key is validated

Passive Inferred Device – a device accustomed to detect motion by detecting adjustments to heat

Passive re Locking Device – a device that places its bolts only upon attack to the safe or lock

Patented Unrestricted key-way – a specific key-way that’s sold without restriction with a lock maker, but which retains patent protection against non-original key blank makers

Pattern Key – 1. an original key kept on file to work with in a key duplicating machine when additional keys are essential,

Pattern Key – 2. any key that’s found in a key duplicating machine to make a duplicate key

Peep Hole – a small lens or opening allowing a small view by way of a door

PIN – personal identification number, a number of numbers and/or letters associated which has a particular individual being a method of identification

Pick – 1. something or instrument, besides the created specifically key, made for your function of manipulating tumblers in a lock or cylinder in the locked or unlocked position through the key-way, without obvious damage.

Pick – 2. to control tumblers in a keyed lock mechanism through the key-way, without obvious damage, by means besides the created specifically key

Pick Gun – a device meant to impact all from the bottom pins of a pin tumbler lock at the exact same some time to thereby bounce the superior pins after dark shear line

Pick Key – a sort of manipulation key, cut or modified to work a lock or cylinder

Pin – to put in pin tumblers right into a cylinder and/or cylinder plug, see also “pin tumbler

Pin Chamber – the attached hole drilled in the cylinder shell and/or plug to just accept the pin(s) and spring

Pin Change – a mix lock that will require manually relocating the fly(s) to alter a mix

Pin Kit – a sort of keying kit for a pin tumbler mechanism

PIR – Passive infer-red

Plug – the part of a cylinder which contains the key way, with tumbler chambers usually corresponding to those inside the cylinder shell

Plug Follower – something used to allow for removal from the cylinder plug while retaining the superior pins, springs, and/or any other components inside the shell

Plug Holder – a holding fixture which assists inside the loading of tumblers right into a cylinder plug

Plug Retainer – the cylinder component which secures the plug inside the shell

Plug Spinner – something which rotates a picked cylinder plug so quickly inside the desired direction which it cannot lock during its rotation

Pull Handle – trim for gripping to use pulling force to a door

Push Plate – a generally flat and commonly rectangular trim mounted for hand contact to push open a door

Push Button Lock – a self contained lock with controls that really must be pressed in a specific pattern or sequence to open up the lock


Rake – a picking technique that tries to use quick withdrawal from the pick to create the tumblers

Random Master Keying – any undesirable process accustomed to master key which uses unrelated recommendations for create something

Ratchet Lock – any lock which incorporates a ratchet device allowing locking in multiple position

Rated – of or pertaining to a product’s compliance with a number of recognized standards like UL.

Read – to decode a lock combination visually without disassembly from the lock or cylinder

Reader – a device used in the access control system to interrogate a digital, magnetic or optical form of credential

Reference Position – usually a numerical designation for a tumbler position in a lock or possibly a cut position on a key, typically counted from the stop

Rekey – to change the existing combination of a cylinder or lock

Relocking Device – any device intended to avoid normal opening of a safe being a result of your attack, 2 types are usually used, internal and external

Remote Release – a mechanism for permitting the unlocking from a lock device at a distance from the device

Removable Core – one whose design limits its installation to a number of specific forms of housing or shell from your given manufacturer

Removable Cylinder – a cylinder which might be removed from your locking device by a key and/or tool

Removable Shackle – referring to a form of padlock that’s unlocked by taking out the shackle from the case

Repin – to replace pin tumblers, with or without changing the existing combination

Reset Code – in the electronic lock, a factory-set or user-set code or combination that can restore all factory default settings except the present reset code along with the audit trail

Restricted – of or regarding a key-way and corresponding key blank whose sale and/or distribution is fixed from the lock manufacturer as a way to reduce unauthorized key proliferation

Reverse Key-Way – a key-way shape that can be a mirror image of another

Reverse Strike – a strike employed for rim mounted hardware applied to reverse bevel doors

Reversible – regarding hardware that is manufactured in a way, allowing field assembly or adjustment to allow for installation on doors with different orientations

Reversible Key – a usually symmetrical key that might be inserted in either case up to work a lock

RF – Radio frequency

RFID – Radio frequency identification

RH – Right hand

Rim Cylinder – a cylinder typically used with surface applied locks and attached which has a back plate and machine screws. It has a tail piece to actuate the lock mechanism

Rim Lock – a lock or latch typically mounted for the surface of a door or drawer

Rose – a usually circular escutcheon


Safe – an amazing, secure container with varying examples of security and/or fire resistance, accustomed to store valuables against fire or theft

Safe Deposit – a typically key accessed container that will require dual key operation, usually located inside a vault

Safe Deposit Function – an operational characteristic of a lock which requires two separate keys employed in tandem to open up the lock

Safe Deposit Lock – a lock that typically requires two separate recommendations for access a container

Safe Door – that portion of a safe accustomed to gain access to the contents from the safe in a normal day to day manner

Sash Lock – a sort of door or window lock

SDB – Safe deposit box

Second Generation Duplicate – a key reproduced from your first generation duplicate

Self Closing – regarding doors or covers which possess a continuous force applied inside the closing direction

Semi Automatic Key Machine – a device capable of duplicating keys with limited manual operations

Service Code – in the electronic lock, a factory set or user set code or combination that can open the lock one


Shackle – 1. the part of a padlock, which passes through a gap in the object or fits around an item and it is ultimately locked in the case 2. the portion of a restraint which fits around the wrist, ankle, neck, waist or thumb

Shank – 1 the part of a bit key relating to the bow along with the stop; or, if you have no shoulder stop, the part relating to the bow along with the near side from the bit, 2. a lesser diameter portion of a knob that is positioned relating to the larger portion from the knob along with the rose or the door surface

Sheer Line – a spot in a cylinder from which specific tumbler surfaces has to be aligned, removing obstruction(s) which prevented the plug from moving

Shim – 1. n. a thin little bit of material accustomed to unlock the cylinder plug from the shell by separating the pin tumblers with the shear line, one at a time 2. v. to unlock a cylinder plug looking at the shell by using a shim

Shoulder – a projection from a key that might be any key stop besides a little gem stop, see also “bow stop”. Some shoulders on keys serve no functional purpose.

Shoulder Stop – one that serves being a pause and position the key in a lock or cylinder

Shrouded Shackle – a shackle that’s protected from cutting or tampering by design or from the use of secondary shields Simple latch – a non-deadlocking latch

Simultaneous Retraction – a feature allowing retraction of both deadbolt and latchbolt inside the same operation

Skeleton Key – any non-cylinder key whose bit, blade, and/or post is cut away enough to allow for it to get in and turn in locks with different ward arrangements

Slim Jim – a narrow strip of spring steel accustomed to bypass the cylinder and unlock vehicle doors

Spindle – a factor which transfers rotary motion from outside a lock or latch case to an inner mechanism

Split Spindle – a multi-piece spindle allowing a knob or lever to be attached to just one side of a door

Strike – a bolt receptacle typically mounted in the door jamb or floor

Strike Reinforcer – a metal plate mounted behind a strike, using long screws to secure it to the door frame.


Tail Piece – an actuator attached to the rear from the cylinder, parallel to the plug, typically applied to rim, key-in-knob or special application cylinders

Talon – the part of a lever lock bolt that is relieved to allow for the key to get in and move the bolt.

Tamper Resistant Fastener – any one several screws or nuts which possess a specialized head, requiring a particular access tool for removal

Tamper Switch – a sensor that signals when someone tries to access the mechanism of a security device

TCP/IP – it networks use to communicate with one another

Template – a pattern accustomed to mark cutout locations for hardware installation

Thermal Lance – an instrument, employed for cutting which has a pure oxygen feed, which uses itself along with the material being cut as fuel

Throw – the space a bolt or latch projects from the faceplate or case of a lock inside the extended position

Thumb Turn – a lock which has a thumb piece to actuate the latch, a actuator which might be turned by thumb and forefinger

Thumbturn Cylinder – a cylinder which has a turn knob as opposed to a key-way and tumbler mechanism

Time Delay – a feature which prevents operation until an arrangement amount of your time has elapsed. Activation normally begins when access, egress or any other unlocking is desired.

Time Delay Lock – a lock which has a mechanism for preventing unlocking until a specific amount of your time has passed

Tow (of a shackle) – that section of the shackle, that might be removed from the padlock body

Tolerance – the deviation allowed from your given dimension

Touch Bar – a sort of exit device actuator which typically does not pivot and retracts the bolt which has a minimum of pressure

Touch Pad – 1. an exit device actuator which has a paddle shape 2. an isolated door opener activator, typically electric or electronic, which facilitates handicap access

2 in 1 Pick – something meant to open lever locks where bolt pressure and lever manipulation are applied simultaneously


Un Combinated – 1. of or pertaining to a cylinder that’s or perhaps is to be supplied without keys, tumblers and springs 2. of or pertaining to a lock, cylinder or get into which the mixture will not be set

Under Lifting – a process that moves a spring loaded tumbler to a point short from the operating indicate form a shear line

USB Key – a hardware key connected to a USB port


Valet Key – an automotive key that operates all locks except pouches, over a vehicle and then there can be an expert key to work all locks

VATS – Vehicle Anti-Theft System

VATS Key – a key for a few General Motors vehicles which contains a resistor chip that really must be qualified from the vehicle as a way to run


Wafer Tumbler – 1. an appartment tumbler which has to be drawn in the cylinder plug from the proper key so that none of their extremities extends in the shell 2. an appartment, usually rectangular tumbler which has a gate which has to be aligned which has a sidebar from the proper key

Walk in Vault – a vault which has a man door and open living area inside

Wall Vault/Safe – a secure positioned in a wall so that only the door plus a frame is visible

Ward – a usually stationary obstruction in a lock or cylinder which prevents the entry and/or operation of your incorrect key

Ward Cut – an adjustment of a key allowing it to bypass a ward

Warded – having a number of wards

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