Locksmith Guide Sheffield Lane Top

Locksmith Terms – Locksmiths Sheffield Lane Top

Related terms in addition to their meanings locksmith glossary section here.

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

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

Access Control Key Fob – any device other than an important built to allow a symbol to be utilized and persisted an important ring

Active Leaf Door – the single door of a pair where the active or locking hardware is mounted

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

After Hours Depository – a secure locker or safe where pieces of value may be left out of hours

Alarm System – a process of electrical and/or electronic components which detect and report dangers, including fire or intrusion

Anti Strike Plate – A device fitted about 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 – instructions box, house numbers, handles, door knobs, hinges etc

Attack Resistant – design qualities of a product which render brute force physical defeat methods less capable or ineffective

Automatic Closing – pertaining to a door which can be furnished with a door closer, or another device to shut it without manual intervention. Frequently present in Life Safety and fire code requirements.

Automatic deadbolt – a deadbolt built to extend itself fully once the door is closed

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


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

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

Back Set – the length between your centre of a cross-bore as well as 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 its strike

Barrel Bolt – a surface mounted slide bolt that includes a cylindrical shape

Barrel Key – a kind of bit key with a hole drilled in to the shank from your tip

Bell Box (sounder box) – the protective enclosure for the bell or another 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 bicycle. modern bike locks use tough metals that prevent hack sawing.

BI Fold Door – a door with a couple of teams of hinges, the extra set(s) allows the doorway to have accordion action when opened

Biometric Lock – of or pertaining to a lock with a hybrid mechanism, part of the mechanism identifies a physical attribute including finger print, voice print, etc. while another part is often a mechanical mechanism

Bit – the part of the key which may serve as the blade, usually for use in a very warded or lever tumbler lock

Bit Height – a measurement from your post of a bit key outward on the end in the bit

Bit Key – an important with several projecting bits

Bit Thickness – a measurement in the bit derived from one of side on the other side

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

Bitting Depth – the depth of a cut which can be made in to the blade of an important

Bitting Position – the venue of an important cut

Blade – the area of an important which might offer the cuts and/or millings

Blank – an uncut key

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

Bolt – any movable projection which blocks the movement of 1 object in accordance with another

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

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

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

Bullet Lock – a lock used mostly on shutters. Once the lock continues to be inserted into its housing it locks automatically. only unlocked with an important. Widely used inside the UK on shop fronts.

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

Burglar Alarm – a process built to detect and report conditions, which might indicate intrusion or attempted intrusion

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

Button Know – the knob in an important-in-knob lock which includes a push or turn button

Bypass Key – the key which operates an important 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 an important or cylinder plug on the bolt works of a lock 2. the bolt of a cam lock

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

Card Access System – an access control system which uses a controlled security card because the credential

Card Holder – one to whom a card continues to be 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 which can be built to be removable to allow access on the mechanism

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

Case Ward – any ward directly mounted on or projecting from your lock case

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

CCW – Counter Clockwise

Central Locking – a location designed for the express reason for processing status signals for multiple alarm systems

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

Combination Lock – a lock which can be operated by local input of a specific series or sequence of numbers or letters

Combination Wheel – a wheel type tumbler in a very combination lock

Contact Point – the area on either side in the drive cam gate that the lever nose makes connection with. Most locks possess a left contact point as well as a right contact point.

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

contactless Smart Card – a card, conforming on the physical characteristics specified in ISO 7813 & 10536, which contains several integrated circuits and use contacts to obtain power and allow interface to external equipment

Cupboard Latch – a latching mechanism typically surface mounted on the away from cabinet doors or drawers

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

Cut Key – an important which continues to be bitted or cut to fit a lock

Cylinder – a total operating unit which in turn consists in the plug shell, tumblers, springs, plug retainer, a cam/tailpiece or another actuating device, and many types of other necessary operating parts

Cylinder Guard – a protective cylinder mounting device

Cylinder Key – a diverse generic term including almost all keys for pin and disc tumbler locks

Cylinder Lock – any lock which 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 from the cross-bore


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

Deadlock – a lock which incorporates a deadbolt

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

Deadlocking Latch – a latchbolt with a deadlocking mechanism

Decode – to discover an important combination by physical measurement of an important and/or cylinder parts

Degree of Rotation – a specification for that angle at which a cut is converted to an important blade as referenced from your 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 that includes a specfic hold-open interval before moves a door toward the latching position

Dimple Key – an important whose cuts are drilled or milled into its blade surfaces. The cuts normally don’t alter the blade silhouette.

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

Door Puller – a power tool built to open a secure deposit box by forcibly pulling the doorway and damaging the lock

Door Viewer – a device with several lenses, mounted in a very door at eye level, that allows a restricted view

through a door

Double Bitted Key – an important typically bitted on two opposite surfaces

Double Locking – of or pertaining to a lock with several bolts with various functions, typically a latch as well as a deadbolt

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

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

Drill Point – the complete measurement in the location used to drill a locked up container to effect an opening

Dummy – related to any sort of non-active device applied for aesthetic purposes

Duplicate Key – any key reproduced from your pattern key

Dust Cover – a device built 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 – within an 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 the vault

Engineers Key – a selective master key which can be employed by maintenance personnel to operate many locks under different master keys in a process of three or maybe more amounts of keying

Entry/Exit Delay – a security or access control feature that allows a specific time lapse between your activation of a switch as well as the activation of a secondary component

Escutcheon – a surface mounted trim which boosts the appearance and/or security of a lock installation

Espagnolette – a top and bottom locking system with hooks at either end which rotate to attract 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 doorway

Exit Door – 1. a door without any provision for ingress, 2. a door which fills some or all of the code dependence on safe egress in the occupant load from your building or portion of a building

Extractor Key – a power tool which normally removes part of a two-piece key or blocking device from an important-way


Face Plate – the finished, removable plate which provides coverage for the leading of some locks

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

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

Fail Secure – a feature of a security device built to remain locks for security purposes throughout a power loss

Finish – a material, coloring and/or texturing specification

Fire Alarm – a process built to detect and report conditions, which might indicate presence of a fire

Fire Door – a door constructed to deliver a specific amount of fire protection

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

Fire Exit Hardware – exit devices, which might legally be installed, on fire doors. Distinguished from other exit devices since it:

1.is labeled for both fire and panic and;

2.doesn’t have any means of locking the latch in a very retracted position

Fireman’s Key – an important used to override normal operation of elevators, bringing them on the ground floor

First Generation Key – an important which was duplicated employing a factory original key or perhaps a code original key as being a


Floor Safe – a burglar container designed for mounting below floor level while using top surface flush while using finished floor

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

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

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


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

Gate – a notch cut in to the edge of a tumbler to take fencing or sidebar

Grand Master Key System – a master key system which includes exactly three amounts of keying

Great Grand master Key System – a master key system which includes exactly four amounts of keying


Handed – related to hardware which can be manufactured limited to application on doors with a specific orientation

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

Hard Plate – a tempered barrier placed between your lock as well as the outside of a safe to inhibit drilling

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

High Security Cylinder – a cylinder that provides a larger amount of resistance to drilling or another forms of forcible entry and several in the following: picking, impressioning, or key duplication

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

Hold Open – a function of self latching hardware that allows a lock being set in a very non-latching mode. A function of a door closer, or separate hardware device, that allows the doorway being retained within an open position

Hold Back – a function of some self latching locks that allows selective retention in the bolt in order to avoid latching once the door is closed

Hollow Metal Door – typically a door manufactured from sheet metal on all surfaces and lightly reinforced making it rigid

Hook Bolt – a lock bolt shaped inside the general outline of a hook. Normally used on sliding doors or where spreading in the frame and door is often a possible attack.

Hybrid Locking System – a locking system which derives its security from a couple of different technologies operated with the same type in 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 it by means of force.


KA – Keyed alike

KD – keyed different

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

Key – an adequately combinated device which can be, or most closely resembles, the device specifically intended with the lock manufacturer to operate the attached lock

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

Key Cabinet – a cabinet with hooks, velcro, or another means built to store keys systematically

Key Coding machine – an important machine designed for producing code keys. It may or might not exactly also serve as being a duplicating machine.

Key Cut Profile – the form of an important cut, including the cut angle as well as the out root shape

Key Duplication Machine – an important machine which can be built to make copies from your pattern key

Key Extractor – a power tool designed for use to take out a broken or stuck key from your lock

Key Gauge – a usually flat device with a cutaway portion indexed with a given pair of depth or spacing specifications. It is used to help determine the blend of an important.

Key Holder – one to whom an important continues to be issued

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

Key in Knob Lock Set – any lock set with an important operated cylinder in several knobs

Key Lock – related to a device operated with a mechanical key, in contrast to combination, electronics, etc.

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

Key Manipulation – manipulation of your incorrect type in order to operate 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 related to such a provision, like “key override cylinder”

Keyed Alike – of or related to a couple of looks or cylinders which may have or are going to have the same combination. They may or might not exactly be part of a keying system

Keyed Different – of or pertaining to a band of locks or cylinders, every one of which can be or is being combinated differently from your others. They may or might not exactly be part of a keying system.

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

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

Key Way – 1. the opening in a very lock or cylinder which can be shaped to take key bit or blade of a proper configuration

Key Way – 2. the complete cross sectional configuration of an important-way as viewed from your front. It isn’t necessarily just like the key section.

Kick Plate – a protective plate mounted for the bottom of a door in order to avoid injury to minimize damage on the door


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

Latch – a mechanical or magnetic door fastener that may automatically keep a door, gate, etc., closed

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

Latch Bolt – a spring actuated bolt, normally with several beveled surfaces, which, when aligned while using strike, engages it automatically

Latch Guard – a plate or blend of interlocking pieces built to block access on the edge of a latch once the door is shut

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

Lever – an important part in a very mortice lock. usually 5 lever in a very UK insurance approved mortice lock, 2 or 3 levers in internal mortice locks. known collectively as being a “lever pack”

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

Lock Bumping – a picking technique which uses a configured key forcefully impacted in to the key-way

Lock-in – of or pertaining to a combination lock which is inoperable as the last number of a combination is placed inside the forbidden zone

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

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

Locksmith – someone while using knowledge and capability to select, install, service and bypass all of the aspects of a power or mechanical lock


Magnetic Contact – a power switch activated by magnetic attraction or repulsion

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

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

Manipulate – a dialling process typically used with combination locks to discover operational status in the lock, potential combinations or try to free the mechanism

Manipulation – a opening means for mechanical combination locks which uses the tolerances of the lock to discover an opening combination.

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

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

Master Blank – an important blank used in a very complementary key-way lock, where only the master key combination is intended being cut

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

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

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

Master Key 2 v. to combinate a small grouping of locks or cylinders so that each is

operated by its own change key in addition to with a master key for that entire group, 3. n. an automotive key which

operates all or most locks with a vehicle high is a valet key employed

Master Key System – 1. any keying arrangement which includes a couple of amounts of keying

Master Key System – 2. a keying arrangement which includes exactly two amounts of keying

Master Keyed – 1. of or pertaining to a cylinder or band of cylinders that happen to be or are being combinated to ensure all may be operated by their particular change key(s) and also by additional key(s) known as master key(s) 2. a warded lock whose warding continues to be built to allow different hierarchies of keys to operate

Metal Besk Lock – a cabinet lock with a vertically sliding bolt located on the rear in the cylinder

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

Mis-cut – of or related to an important which continues to be cut incorrectly 2. n. a mis-cut key

MK – master key

MK’d – master keyed

Mortise – 1. v. to arrange by removing stock material from your edge of a door, drawer, frame or opening to create a recess that allows the flush fit or insetting of relevant lock or another hardware, 2. n. the cavity made by mortising, 3. adj. of or pertaining to a locking device built to fit in a very mortise preparation

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

Mortise Exit Device – an exit device designed for mortise installation

Mortice Lock Set – a lock set the truth of which can be built to fit in a very 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, built to inhibit the ultimate unlocking of a combination lock or timelock

MP – manipulation proof

MR – manipulation resistant

MS – maximum security

MPL – Multi point lock, as used on UPVC doors inside the UK. a lock which includes multiple bolt that happen to 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 used to increase pick resistance


Neck – (of key) 1. the portion of a bit key between your shoulder as well as the bit(s) 2. the portion of a cylinder key between your shoulder as well as the bow

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

Night Latch – a rim mounted auxiliary latch bolt

Non Handed – related to hardware which is manufactured in a very way, that allows installation on doors of the orientation without requiring modification or adjustment to allow for the doorway orientation

Non Original Key Blank – any key blank other than a genuine

Non Removable Key – an important which includes several cuts onto it which trap the key inside the lock upon insertion

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


Original Key Blank – an important blank supplied with the lock manufacturer to fit that manufacturer’s specific product

Overhead Concealed Closer – a better designed for installation out of view in the doorway header area

Overhead Stop – a door stop which contacts the doorway nearby the top

Overlifting – 1. a picking technique employing a blank critical for improve the tumblers on the top of the key-way

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

Overlifting – 3. a process that moves a spring loaded tumbler past the operating point

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

Override Combination – in certain locks with a user changeable combination, another combination that allows access constantly. It is often factory set and could ’t be field changeable.


Paddle Handle – a kind of actuator which can be relatively flat and operates the mechanism when pivoted while on an axis near one end

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

Panic Button – any switching device within an self-protection system built to be activated with a person in a very panic situation. It creates an immediate alarm condition

Paracentric – 1. of or related to an important-way with several wards on either side projecting past the vertical centre distinctive line of the key-way to hinder picking 2. of or related to an important blank made to get in such an important-way

Parallel Arm – a kind of door closer and/or closer mounting which leaves the arm generally parallel on 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 an adequately recognized transponder key is validated

Passive Inferred Device – a device used to detect motion by detecting alterations in heat

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

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

Pattern Key – 1. a genuine key kept on file to use in an important duplicating machine when additional keys are needed,

Pattern Key – 2. any key which can be found in an important duplicating machine to create a duplicate key

Peep Hole – a small lens or opening that allows a restricted view through a door

PIN – personal identification number, a series of numbers and/or letters associated with a particular individual as being a means of identification

Pick – 1. a power tool or instrument, other than the created key, made for that reason for manipulating tumblers in a very lock or cylinder in to the locked or unlocked position through the key-way, without obvious damage.

Pick – 2. to manipulate tumblers in a very keyed lock mechanism through the key-way, without obvious damage, by means other than the created key

Pick Gun – a piece of equipment built to impact all in the bottom pins of a pin tumbler lock at a similar time and thereby bounce the top pins past the shear line

Pick Key – a kind of manipulation key, cut or modified to operate a lock or cylinder

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

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

Pin Change – a mix lock that needs manually relocating the fly(s) to improve a mix

Pin Kit – a kind of keying kit for the 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 – a power tool used to allow removal in the cylinder plug while retaining the top pins, springs, and/or another components inside shell

Plug Holder – a holding fixture that helps inside the loading of tumblers right into a cylinder plug

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

Plug Spinner – a power tool 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 utilize 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 very specific pattern or sequence to open the lock


Rake – a picking technique that attempts to use quick withdrawal in the pick to put the tumblers

Random Master Keying – any undesirable process used to master key which uses unrelated keys to create a process

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

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

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

Reader – a device used within an access control system to interrogate an electronic digital, magnetic or optical type of credential

Reference Position – usually a numerical designation for the tumbler position inside a lock or perhaps a cut position on an important, typically counted from your stop

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

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

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

Removable Core – one whose design limits its installation to several specific varieties of housing or shell from your given manufacturer

Removable Cylinder – a cylinder which may be removed from your locking device by an important and/or tool

Removable Shackle – referring to a type of padlock which can be unlocked by removing the shackle from your case

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

Reset Code – within an electronic lock, a factory-set or user-set code or combination that can restore all factory default settings except the present reset code as well as the audit trail

Restricted – of or related to an important-way and corresponding key blank whose sale and/or distribution is bound with the lock manufacturer in order to reduce unauthorized key proliferation

Reverse Key-Way – an important-way shape that is often a mirror image of another

Reverse Strike – a strike employed for rim mounted hardware used on reverse bevel doors

Reversible – related to hardware which is manufactured in a very way, that allows field assembly or adjustment to allow for installation on doors with various orientations

Reversible Key – a usually symmetrical key which might be inserted no matter what up to operate a lock

RF – Radio frequency

RFID – Radio frequency identification

RH – Right hand

Rim Cylinder – a cylinder typically used with surface applied locks and attached with a back plate and machine screws. It carries 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 – a substantial, secure container with varying degrees of security and/or fire resistance, used to store valuables against fire or theft

Safe Deposit – a typically key accessed container that needs dual key operation, usually located in a very vault

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

Safe Deposit Lock – a lock that typically requires two separate keys to access a container

Safe Door – that portion of a safe used to gain access on the contents in the safe in a very normal day by day manner

Sash Lock – a kind of door or window lock

SDB – Safe deposit box

Second Generation Duplicate – an important reproduced from your first generation duplicate

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

Semi Automatic Key Machine – a piece of equipment competent at duplicating keys with limited manual operations

Service Code – within an 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 an opening within an object or fits around a thing and it is ultimately locked in to the case 2. the portion of a restraint which fits throughout the wrist, ankle, neck, waist or thumb

Shank – 1 the part of a bit key between your bow as well as the stop; or, if there is no shoulder stop, the part between your bow as well as the near side in the bit, 2. a smaller diameter portion of a knob which is positioned between your larger portion in the knob as well as the rose or the doorway surface

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

Shim – 1. n. a thin little bit of material used to unlock the cylinder plug from your shell by separating the pin tumblers on the shear line, one by one 2. v. to unlock a cylinder plug looking at the shell by employing a shim

Shoulder – a projection from an important that may be any key stop other than a tip stop, see also “bow stop”. Some shoulders on keys serve no functional purpose.

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

Shrouded Shackle – a shackle which can be protected from cutting or tampering by design or with the use of secondary shields Simple latch – a non-deadlocking latch

Simultaneous Retraction – a feature that allows retraction of the two 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 it to get in and turn in locks with various ward arrangements

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

Spindle – a component which transfers rotary motion from the outside a lock or latch case with an inner mechanism

Split Spindle – a multi-piece spindle that allows a knob or lever being attached to merely one side of a door

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

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


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

Talon – the part of a lever lock bolt which is relieved to allow 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 special access tool for removal

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

TCP/IP – the system networks use to convey with one another

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

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

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

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

Thumbturn Cylinder – a cylinder with a turn knob in lieu of an important-way and tumbler mechanism

Time Delay – a feature which prevents operation until a set amount of your time has elapsed. Activation normally begins when access, egress or another 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 part of the shackle, which might be removed from your padlock body

Tolerance – the deviation allowed from your given dimension

Touch Bar – a kind of exit device actuator which typically doesn’t pivot and retracts the bolt with a minimum of pressure

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

2 in 1 Pick – a power tool built to open lever locks where bolt pressure and lever manipulation are applied simultaneously


Un Combinated – 1. of or pertaining to a cylinder which can be or is being supplied without keys, tumblers and springs 2. of or pertaining to a lock, cylinder or type in which the mixture has not been set

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

USB Key – a hardware key connected to a USB port


Valet Key – an automotive key that operates all locks except storage compartments, with a vehicle high can also be a master key to operate all locks

VATS – Vehicle Anti-Theft System

VATS Key – an important for a lot of General Motors vehicles which contains a resistor chip that really must be qualified with the vehicle in order to run


Wafer Tumbler – 1. a designated tumbler which have to be drawn in to the cylinder plug with the proper key to ensure none of its extremities extends in to the shell 2. a designated, usually rectangular tumbler with a gate which have to be aligned with a sidebar with the proper key

Walk in Vault – a vault with a man door and open floor area inside

Wall Vault/Safe – a secure positioned in a wall to ensure only the doorway as well as a frame is visible

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

Ward Cut – a modification of an important that allows it to bypass a ward

Warded – having several wards

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