Do I have to
buy new locks if I do not want a person with a key to get in?
No, you do not have to buy new locks to lock a person with a key out. You can have the locks rekeyed. A rekey is the removal of the small pins within your lock that match the old key, and the
installing of new pins to match a new key. The cost of rekeying your locks is much less then the cost to replace your locks.
Do you have keys that will
prevent unauthorized key duplication?
Yes, we do offer keys that will prevent unauthorized key duplication. You must use a restricted key to prevent unauthorized key duplication. Restricted keys may be mechanical, electronic or a
combination of both. A key that has been stamped with the words do not duplicate may not be a restricted key. A lack of key control is the largest cause of unauthorized entry without the use of
Can you change the combination on a safe?
Yes, most safes have the ability to have the combination changed. Over the past few years advanced electronics have made it much faster and easier to the change the combination on an electronic safe.
A mechanical safe may have to be disassembled to change the combination. Most safes require the safe to be open and the old combination known. It is very important to insure the safe is working
properly with new combination before relocking the safe. If a combination is not working properly do not close the safe and lock it.
What is the difference between a
fire safe and a burglar safe?
The difference between a fire safe and a burglar safe is straightforward. A fire safe keeps items safe from a fire and a burglar safe keeps items safe from a burglar. A fire safe is designed for the
protection of paper items. If film or media is to be protected it must be kept in a media safe due to it's lower temperature destruction properties . A safe can also be both burglar and fire rated. A
burglar rating on a safe usually only is for the safe door unless otherwise specified.
How easy is it for someone with tools
to pick open my locks?
Most lock cylinders both old and new use a shear line process to unlock. Although many factors play a role in how easy a lock is to pick open. most locks can be easily opened with a picking device.
When two or more processes are needed to allow the lock to open it becomes virtually pick proof. It is very important to insure you have at least two different factors that must be meet to unlock a
cylinder if you are wanting an extremely pick resistant lock. The level of pick resistance will increase with every different factor implemented.
Can an access control system lock out a person with a code or access card
after hours or on the weekend?
Yes, an access control system can lock out users at different times even if a person must use a code or card type device to enter. It is impotent to know that not all access control systems have this
capability. The more options you add to an access control system will increase the cost of the system. Many access control systems must be a balance between options and cost. A access control system
is designed for particular procuress and not all are alike. determine the needs you have, but also think of the ability to upgrade or add to the system. It is extremely important to maintain control
of all the codes, keys, cards, tags, ID's and fob's of an access control system for it to be effective. Remove users immediately when they no longer have access privileges.
Definitions and Terms
Abbreviations and definitions used in conjunction with physical security.
ACTION The arrangements of live or latch bolts and their accessories in a lock or latch, and how they function.
ALIKE CHANGE More than one lock or latch which can be operated by the same key.
ALL TO PASS Often referred to as "locks to pass" i.e. a number of locks which can be passed or keyed alike (opened by the same key).
ANTI-THRUST BOLT A spring bolt, for a night latch particularly, which cannot be pushed back when it has shot out and fastened a door.
ANTI-THRUST PLATE An overlapping metal plate fitted to outward opening doors so as to prevent access to lock bolts.
AUTOMATIC DEADLATCH A deadlatch, the main bolt of which is automatically locked (or deadlocked) when the door is closed.
BACKPLATE The plate, fixed on a door, to which the moving parts of a lock or latch are attached.
BAR (OF LEVER) The part between the pockets which is slotted to allow the bolt stump to pass through.
BARREL AND CURTAIN This is the full name of a security device fitted in some locks to turn and close the keyhole when the key or any other instruments inserted through the keyhole is
BARREL BOLT The common kind of door bolt having a round shoot running in a long continuous guide or strap attached to the backplate, the shoot being provided with a knob or the equivalent for
operation by hand.
BATHROOM LOCK A lock with a springbolt operable on both sides by furniture, and a deadbolt operable from the inside only, usually by thumb turn.
BIRMINGHAM BAR A steel bar fitted to the inside face of a door frame on the hinge side.
BOLT The part of a lock or latch which provides the fastening or engagement by protruding from the case or forend to engage in the staple, striking plate, link, shackle or other member.
BOLT HEAD The portion of a bolt that protrudes beyond the case of forend of a lock.
BOLT HOLE The hole in a case, forend, plate or staple to guide and/or admit the bolt.
BOLT STUMP According to some authorities, this is the name of the part that upstands, usually rectangular in section, on a dead bolt or runner which passes through the slot or gating in the
levers as the bolt moves.
BURGLAR BARS Steel bars, usually round or square in profile, cut to length and fixed internally to window frames.
CABINET LOCK A generic term to include all locks of any type for use on pieces of furniture, such as cupboards, drawers, chests, boxes and the like.
CAM Usually a tongue fixed to the end of the plug of a cylinder lock or latch.
CAM LOCK A complete locking assembly in the form of a cylinder whose cam is the actual locking bolt.
CAP (OF THE LOCK) The removable cover to a lock mechanism.
CASE That part of a lock or latch containing the mechanism.
CASEMENT DOOR A hinged door or pair of doors almost wholly glazed; often called a French Window.
CASEMENT WINDOW A window in which one or more lights are hinged to open.
CHAMBER The holes in cylinder housings that house top pins (drivers) and springs.
CHANGE KEY The key which opens one particular lock, the term is usually used with Master-Keyed Suites (Servant key).
CHANGE KEY LOCKS These are locks which can be operated by any key chosen from a large number of different keys that have been made for the purpose. The selected key is the only one which will
open the lock until a change is deliberately made.
CLAW BLOT A type of deadbolt having pivoted claws which swing out sideways when the bolt is shot. Such locks are usually fixed to sliding doors.
CLUTCH HEADED SCREW Threaded screws suitable for wood or metal with a shaped head allowing clockwise action to fix but no anticlockwise action to remove.
CLOSE SHACKLE PADLOCK A padlock, the body of which is built up so that the minimum amount of shackle is visible when locked. It offers improved security against forcing or use of
COLLAR The shoulder on the shank of a rim, mortice or bitted key, controlling the point at which the key comes to rest after being fully inserted into the lock. The collar is the datum point
from which the key is measured.
COMBINATION LOCK An abbreviation of name for a keyless combination lock.
CONCEALED FIXING (OF LOCKS OR LATCHES) A strong backplate is screwed to the door, the lock case slides over it and is secured in position by two or more grub screws which are concealed whenever
the door is closed. This is usually associated with security night-latches.
COVER The part of a lock or latch which covers the mechanism and is fixed, usually by screwing, to the case.
CROSS DIFFER An error situation whereby change keys (servant keys) operate more than one lock when this was not intended.
CROSS RAIL The horizontal member of a door.
CUT CABINET LOCK A cupboard or drawer lock, the flange of which is recessed into the edge of the drawer or door.
CURTAIN An abbreviation for barrel and curtain.
CYLINDER Usually the cylinder with inner co-axial plug which houses the pins, top pins (drivers), or disc tumblers and springs in the cylinder body.
CYLINDER HOUSING With all component parts removed, this forms the main body or housing of a cylinder.
CYLINDER KEY A key, having a bow and long blade in which Vee cuts are made along the upper edge to operate the pins and drivers in a pin tumbler mechanism.
CYLINDER LOCK OR LATCH Any lock or latch, the mechanism of which is contained in a cylinder.
CYLINDER ROSE (OR RING) A shaped metal disc which surrounds the outer face of the cylinder of a cylinder mechanism assembly. It usually stands slightly proud of the outside face of door.
DEADBOLT The square-ended bolt of a lock which is moved in both the locking and unlocking directions by the key (but occasionally by thumb turn inside only) to provide fastening.
DEADLOCK A lock having only a square-ended deadbolt operable from one or both sides by key, and occasionally from outside only by key, inside by thumb turn. Sometimes operable only from outside
and with no inside keyhole, which is designated a single-entry deadlock.
DIFFERS An abbreviation of "different combinations" or changes.
DISC TUMBLER LOCK A cylinder lock having disc instead of pin tumblers.
DOOR CLOSER A devise for closing a door or gate automatically after opening. There are numerous types available.
DOOR VIEWER Optical device fitted through a door to enable observation without opening the door.
DOUBLE BITTED KEY One with a bit on each side of the shank.
DOUBLE FEATHER SPRING Two separate feather springs, fitting closely together one inside the other. Alternatively both may be made form one length of material and remain joined at one end. A
spring so made is more lively and likely to last longer than a single spring of thicker material.
DOUBLE LOCKING 1. By introducing a different cam arrangement into the action of a cylinder rim nightlatch it is possible to give a double or deadlocking facility at no extra cost. A simple
opposite turn of the key in the outside cylinder deadlocks both bolt and inside knob simultaneously. This gives protection against the bolt-forcing and the glass or wood panel breaking
2. Also where a lever lock shoots its bolt by more than one turn of the key, thus doubling the distance of its shoot.
DRILLED-THROUGH SPINDLE (FOR LOCK FURNITURE) Usually shortened to DT. A spindle with a few holes drilled at each end, one of which accepts the screw passing through the neck of the knob (or
lever handle) in the door furniture.
DRILLPIN (SOMETIMES PIN) A fixed stump or pin in a lock onto which the hollow shank of a pipe key fits when inserted to operate the lock.
DRIVERS (TOP PINS) Pins that rest outside the plug of a cylinder when the key has created the shear line and are housed in the chambers of the cylinder housing. Drivers can be of various shapes
other than cylindrical, so as to form anti-rap pins or anti-pick pins. See "Mushroom Drivers".
DROP 1. In drawer, chest, box or similar cabinet locks, the vertical distance from the outside face of the top edge or selvage to the centre of the keyhole.
2. Sometimes this term is used for a keyhole cover an a padlock.
EAR OF KEY OR SHOULDER The projecting stop on one or both edges of a pin tumbler or other key near the bow to prevent the key from being pushed too far into the lock.
EASY ACTION A lock is designed so that only light spring pressure is required to move the bolt ; additional spring pressure is required to move the follower and lock furniture. This is necessary
especially when lock furniture comprises of lever handles, the handles then return to their correct position.
EN SUITE To indicate that locks are incorporated in a master keyed system or keyed alike en-suite.
ESCUTCHEON The cover for the key hole of a mortice or similar lock.
FACE PLATE The outer of a double forend. A strip of metal fixed to the inner forend, thus forming a double forend.
FALSE NOTCHES OR FALSE GATING 1.The notches in the bar of the levers and the bolt stump of some locks to improve the security against attempted picking.
2. Cuts or notches which are put in some keys to give the appearance of greater intricacy although they serve no useful purpose.
FINAL EXIT DOOR The exit door through which entry must later be obtained, and so cannot be bolted. It is usually the front entrance door or final means of exiting.
FLAT STEEL KEY A key made from steel sheet or strip, without corrugations in the thickness, but having the edge(s) notched to provide the differs.
FLUSH BOLT A door which can be recessed flush into the edge or face of a door.
FOLLOWER That part of the latchbolt or springbolt mechanism containing a square hole to admit the spindle (to which furniture is attached) which withdraws the springbolt when turned. It has one
or two projections or horns which act on the bolt foot.
FOREND That part of the lock or latch through which the bolt(s) protrude, and by which the lock or latch is fixed to the door.
FOUR-WAY LOCK A rim lock so made that it can be fitted as either a right hand or left hand installation on doors opening either inwards or outwards, without alteration, except that in some types
the springbolt may need reversing.
FULL REBATED (LOCK OR FOREND) A mortice lock or latch with a specially shaped forend and striking plate to suit the shaped meeting edge of a single door which overlaps the door frame or a pair
of doors which overlap each other - and such overlap or rebate is at the centre of the door thickness.
FULL WIDTH PADBAR Usually purpose made, a steel bar spanning the full width opening of a door with supporting brackets or staples fixed to the frame and secured by a padlock.
FURNITURE The additional items needed, which are screwed to one or both sides of the door to enable a lock or latch to be manually operated.
GRAND MASTER KEY When a series of locks is divided into two or more sub-suites the key which controls all the sub-suites (i.e. all the locks in the entire complex) is called the grand master
GREAT GRAND MASTER Key One higher in degree than a grand master key. It is used only in very special arrangements of master keyed locks.
GUARDS A guard is a fixed part inside a lock to prevent false keys from turning, or to prevent an instrument from reaching the bolt or levers.
GUNMETAL Another term for bronze.
HASP AND STAPLE A fastening in two pieces for a door or box to be secured by a padlock. The hinged part is called the hasp and shuts over the staple. For real security it is essential to use a
hasp and staple with concealed fixing.
HINGE BOLTS Fixed steel protrusions fitted into the rear edge or hinge side of doors, closing into holes cut into the door frame, to protect from forced attack on the hinge side of the
HOLD BACK STOP A thumb slide on the case of a cylinder rim nightlatch or in the forend of a cylinder mortice lock used either to hold back or alternatively deadlock the main bolt.
HOOK BOLT A pivoted springbolt, the head of which is shaped in the form of a hook. Such locks or latches are usually fixed on sliding doors.
HOOKWARD KEY The ward is fixed in the lock case formed as part of a circle like a wheel ward, but with a return or flange so that a cut in the key to fit would be L shape.
HORIZONTAL LOCK A mortice or rim lock having the follower hole further from the forend than the keyhole, but in the same horizontal plane. Used when knob furniture is specified to prevent the
barking of knuckles on the door frame.
IMITATION BMA An electro deposited powder or lacquer finish on metal to simulate as nearly as possible the genuine Bronze Metal Antique finish. It is known as lBMA.
JAMB The vertical member of a door or window frame. In some areas the top rail of a door frame is referred to as the top jamb.
KEEP OR KEEPER A term sometimes used, particularly in the North, for a staple or striking plate.
KEY CHANGE A term sometimes used instead of "differ". The change or differ of the key is generally indicated by number, and sometimes numbers and letters marked an the bow.
KEY STEPS OR KEY DEPTHS This term usually means the bolt step and lever steps of a key for a lever lock.
LATCH The type of product with one bolt only.
LATCHSET A latch complete with necessary furniture including a spindle, ready for fixing to the door.
LEVER A flat shaped movable detainer in a lock, usually for the purpose of providing security and differs.
LEVER MECHANISM A lock mechanism having, as its principle feature, one or more levers.
LEVER HANDLE A piece of lock or latch furniture, usually on a rose or plate, for use as an alternative to a knob for operating the springbolt of a lock or latch. All British lever handles are
spring-loaded to ensure the return to horizontal after use.
LEVER PIVOT The stump in a lock on which the levers swing.
LINK PLATE The complementary member of box, desk and other locks which is fixed to the lid or some part of a cabinet, for example, and has one or more projecting links to enter the lock and
engage the bolt.
LIP (OF STRIKING PLATE) The projection on one side of a striking plate on the surface of which the springbolt of the lock or latch first strikes when the door is closed.
LOCKABLE BOLT A bolt that can be shot and locked in position by the use of a removable key.
LOCKING LATCH A latch with a bevelled springbolt or roller bolt which is capable of being lacked or secured, usually by key.
LOCKSET A lock complete with necessary furniture including a spindle, ready for fixing to the door.
LONDON STRIP A steel bar fitted to the inside face of a door frame, shaped to accommodate the staple or striker of a rim latch lock
LONG SHACKLE (LS) A padlock shackle with a greater amount of clearance than the normal standard shackle.
LUBRICATION On no account should oil be used to lubricate pin-tumbler cylinders. Graphite is the conventional lubricant for this mechanism.
MASTER KEY A key which will open every lock in the master keyed suite.
MASTER KEYED (LOCKS OR LATCHES) A lock or latch capable of being operated also by a master key as well as its own change or servant key.
MASTER PINS Small pins sometimes called wafers to build up chamber pin loading in pin tumbler master keyed cylinders.
MECHANISM (OF LOCKS OR LATCHES) The arrangement of the component parts and the manner in which they perform to achieve the required security and differing when operated by its key.
MORTICE A hole cut into the thickness of one edge of a door to receive a mortice lock or latch.
MORTICE LOCK (OR LATCH) A lock or latch which is morticed to let into the thickness of the door from the meeting edge and held in position by screws through the forend.
NARROW CASE LOCK OR LATCH A rim lock or latch, the case of which is made specially narrow, usually less than three inches wide, for fixing to the narrow stile of a panelled or flush door.
NIGHTLATCH A rim or mortice latch with a bevelled springbolt or roller bolt which shoots when the door is closed, but can be withdrawn by key from outside and by knob or lever handle from
NOZZLE A circular boss or ferrule containing the keyhole on some cabinet locks, including locker locks. Correctly relating to lever cabinet locks.
ONE-SIDED LOCK (SINGLE-ENTRY) A lock which has a keyhole on one side only.
ONE-WAY ACTION An action where the follower will turn only one way.
PAN The removable mechanism chamber attached to the inside face of a safe door.
PANEL GRILLES Steel grilles made to size with various infills of expanded diamond mesh, square weldmesh or fancy infills, usually fitted internally.
PEG WARD A combination of wards resembling a sash ward but fixed by pegs to the lock case.
PIN TUMBLER MECHANISM The mechanism incorporated in the cylinder or body of a cylinder pin tumbler lock, latch or padlock.
PINS Usually the lower of each pair of tumblers in the pin tumbler cylinder mechanism. The upper are known as drivers.
PIPE KEY A key with a flat bit and a hollow circular shank to locate on the drillpin. Used only on one-sided locks.
PLUG The part of the pin-tumbler cylinder mechanism or disc tumbler cylinder mechanism into which the key enters and which the key turns.
RACK BOLT A bolt, usually a door bolt, which is toothed so that it may be operated by a pinion.
RADIUSED FOREND A lock forend which is shaped radically, for use on one of a pair of swing doors.
REBATE The measurement of the stepped reduction or recess in theforend of a rebated lock.
REBATED (LOCK OR LATCH) A morticelock or latch with a forend specially shaped to correspond with the shaped meeting edge of the door for which it is intended. See "Full Rebated".
RELEASE A striker in Various forms to replace the lock strike and is operated electronically.
RELOCKER A locking mechanism independent of any key operations, mounted remotely within a safe mechanism so as to relock the boltwork under certain forced attacks.
REPEAT DIFFERS That supply of differs which have been issued previously. This is usually associated with master keyed suites and where a replacement lock is required to have the same differ as
REVERSED BOLT (RB) A springbolt which has been turned round in its case to suit a door opening outwards instead of inwards. Great care should be taken to use this term RB only when ordering
items which are required with the springbolt reversed.
RIGID GRILLES Heavy duty, welded construction, rod or bar grilles, usually fitted externally or internally to the fabric of a building.
RIM CYLINDER This relates to a pack which usually comprises the cylinder with plug, rose, connecting bar, two connecting screws and two keys.
RIM LOCK OR LATCH A lock or latch that is fitted by screwing on to the inside face of the door.
ROLLER BOLT A springbolt made in the form of a roller, instead of being bevelled. It is recommended far more silent and easier closing of a door.
ROSE 1. A cylinder rose or ring in cylinder locks or latches.
2. In door furniture, it is the small plate to which the lever handle or knob is affixed and which is screwed to the door surface.
SAFE LOCK A general term for the many varieties of key operated and other locks for safes.
SASH LOCK An upright mortice lock, consisting of a latch bolt and a key operated bolt.
SASH WARD Used in rim and mortic elocks, alone or in conjunction with levels for the purpose of obtaining or increasing the differs.
SCOTCH SPRING LOCK A two-bolt rim lock with the reversible springbolt above or below the horizontal plane of the follower.
SERVANT KEY The change key of one (or more than one if of the same change) lock in a master keyed or grand master keyed suite.
SET SCREW One which tightens or fastens another part after assembly or adjustment.
SHACKLE The hinged, sliding or swivelling loop shaped member of a padlock.
SHANK (OF KEY) The part of a pin or pipe key between the bow and the end, excluding the blade.
SHOOT (OF BOLT) The distance a springbolt moves under the action of its spring.
SHOULDER (OR BOW STOP) The projectian or ear of shape that controls the point at which a cylinder or disk tumbler comes to rest when fully inserted into the lock. It is the datum point from
which spacing cuts are measured.
SIDE BAR This is in addition to the existing pin or disc mechanism, and is a bar usually along the length of the mechanism and does not allow rotation until the mechanism is correctly lifted and
can be directly controlled by the key.
SIDE WARDS Notches cut into the sides of bitted keys so fashioned to enable the key to turn.
SKELETON KEY A key, the blade of which has been cut away sufficiently to allow the blade to pass any wards or obstructions within the lock and throw or retract the bolt. There is no universal
skeleton key. One haste be prepared for each series at warded locks. Skeleton keys cannot be made for lever and cylinder lock mechanisms.
SLIDING GRILLES Steel sliding grille gates in single or double leaf, running on top and bottom guide tracks, locked by padlock or integral lock.
SLIDING LEVER A Lever which slides between or on guides instead of swinging on a pivot.
SPINDLE That part of the door furniture usually of square section which passes through the follower hole and is fitted to the knob(s) or lever handle(s) to operate the springbolt.
SPOON The flattened end of a padlock shackle containing the bolt hole or slot which the bolt enters.
SPACER A distance piece of thin metal placed between the levers of some locks.
SPACING The term used to describe the horizontal distances across a key blade or bit.
SPIRAL SPRING 1. A spring made of wire to approximately V shape like a feather spring; with one or more coils formed at the apex of the V to fit over a stump in the lock case.
SPRING-LOADED Moved under the control of, or against the pull of, a spring fixed at one end.
SPRING SHACKLE PADLOCK A padlock, the shackle of which springs open when unlocked, and is locked by snapping to.
SPRINGBOLT Sometimes called the latchbolt. A bolt having the outer edge shaped by bevelling of the vertical face. It is a bolt which may be pushed back into the lock-case and will return to the
extended position without mechanical assistance.
SPRINGLATCH A latch with one bevelled springbolt which locks the door when shut. It is opened by key from the outside and by knob from inside.
STEEL LINING Steel sheet linings applied to external or both faces of a door, usually screwed and bolted through.
STILE A vertical member of a door.
STOP KNOB (SNIB) A device incorporated in some latches and locking latches to hold the bolt retracted or deadlock the bolt when door is closed.
STOP BUTTON(S) There are generally two in number. They are incorporated in the forend of certain cylinder mortice nightlatches or locks. One button, when depressed, renders the outside furniture
inoperable and the other, when depressed, restores the power of operation. They are useful for privacy and on vestibule doors. They are sometimes referred to as "stopworks".
STRAIGHT CABINET LOCK A cabinet lock, with no flange on the case, for flush fitting to cupboards and drawers.
STRIKING PLATE Sometimes referred to as a "striker". It is a shaped flat metal plate fixed to the door frame or jamb with one or more bolt holes into which the bait or bolts shoot. There is a
shaped projecting lip on one side to guide the springbolt., It is used with all mortice locks or latches, and with rim locks or latches with reversed springbalt on an outward opening door.
SUB GRAND MASTER KEY A key which will operate all locks in its own main group or (sub-grand suite) of a grand master keyed system.
SUB MASTER KEY A key which will operate all locks in its own smaller group (or sub-suite) of a grand master keyed system.
SUITE (OF LOCKS) A group or collection locks and/or locking latches and padlocks of different types and changes incorporated together under a master key or grand master key.
TALON The gap that is formed by two curves to the radius of the bolt step of the key in a deadbolt lathe or runner of a lever lock where the key engages the bolt.
THROW The distance a deadbolt moves under the action of its key.
THUMB TURN A small fitting, on the inside of a mortice lock, which is gripped between thumb and finger to operate the deadbalt. It should not be used on glass-or wood-panelled doors.
TILL LOCK A drawer lock, or more correctly a cabinet lock, having a springbolt that shoots upwards and a vertical keyhole. It is self-closing and is unlocked by key.
TIME LOCK A clockwork or electric timing device which disallows operation of a lock or the opening of a door on safes or strongrooms.
TUMBLER A movable detainer which must be lifted before the bolt of a lock can move.
UPRIGHT LOCK A mortice or rim lock upright in form, of which the case is narrow and the centres of the follower hole and keyhole are in the same vertical plane. It is known also as a
WARDS Fixed obstructions inside a lock case to preclude the use of wrong key, as the key is cut to pass over the wards and operate the lock. They are sometimes used in lever locks to give
increased differs. Wards alone give very little security. See "Skeleton Key".
WARDED LOCK Any lock or padlock, the mechanism of which makes use only of wards. Not recommended due to lack of security.