A strong light, robust material used for producing door handles and other door furniture, a favoured material in the 1960's and 70's domestically, but now less popular except in commercial areas. Silver in appearance, aluminium is usually anodized in a satin or a polished finish.
Antiqued / Antiquing
Antiquing is the process by which an object - a piece of door furniture, for example - is treated to give it an impression of age. The object is often darkened or tarnished in one way or another; there are innumerable effective techniques to achieve an antiqued effect on brass, steel or pewter.
Stamped or forged plate which levers and knobs are attached to create the door handle.
A lock or latch measurement which determines the distance of the centre of the Follower (Spindle Hole), and therefore of your handle / knob, from the edge of the door. The measurement is taken from the edge of the faceplate to the centre point of the spindle hole.
Complete lock case which is designed to be morticed into the door, the top 8mm Follower (spindle hole) allows a handle to operate the latch and a separate 5mm Follower allows a Thumb turn to operate the bolt.
A door handle on back plate variation, supplied complete with a small thumb turn and emergency release. The thumb-turn and release can be fitted to either side of the handle allowing for left or right hand fitting. Best fitted with a bathroom lock
Bathroom deadbolt is often tubular and operated by a separate turn and release. It can be confused with a tubular latch. Most bathroom deadbolts have a 5mm follower, but are available with an 8mm follower.
The term 'bolt' is the generic term for a simple locking mechanism on a door. Examples are surface bolts, flush bolts, barrel bolts, monkey tail bolts, mortice bolts and bathroom bolts to name a few.
Bolt M4 / M5 / M6
Nominal diameter of the thread used on bolts used for various fixings. An M4 bolt has a nominal diameter of 4mm, M5 = 5mm, M6 = 6mm etc. All cupboard furniture is supplied with an M4 bolt with pre-tapped holes to suit.
Bolt – through fixings
A Bolt and Sleeve fixing used to secure one handle / knob through the door and onto the matching handle/ knob on the other side of the door. Often supplied instead of woodscrews, they provide an excellent fix as when the handle is pulled the force is against the handle on the other side rather than against the screws in the door.
Bolt – through holes
Small holes in a lock or latch case to either side of the follower (spindle hole) which allows fixing bolts to be passed through the case for securing handles / knobs.
A zinc and copper alloy, used particularly for door handles. It is also used more specifically in latches and locks, due to its property of low friction.
British Standards, a division of the BSI (British Standards Institution) Group. The logo itself incorporates the 'B' and the 'S' from that group, and indicates that the product has been tested and passed by it. There are no grades; either a product passes the test or it fails. An example of the standard in use is BS 3621:2007, which dictates the requirements for theft proof locks.
Casement window is a window which is side hung on hinges and closes into its own frame. Normally opening out it will require a window fastener and a stay.
A handle used to secure casement style (side hinged) window.
A simple lever or bar used with fixed pins to position open a casement style (side hinged) window.
Measurement between the centers of two fixing or measuring points, EG between the fixing points for a cupboard handle / letter plate, or between a follower (spindle hole) and key hole on a lock, etc.
Chrome plating is a decorative plating technique whereby an object is bathed in a hexavalent chromium bath, whose main ingredient is chromic anhydride. The result is a bright mirrored effect finish.
A lock that is morticed into a door, worked by a spindle and thumb turn instead of a key.
Deadlock is a specific kind of lock that offers additional security to any door. A simple deadbolt is used to secure the door in the locked position.
Double Sprung (Heavy Sprung)
Refers to the quality of the spring used in a latch or lock mechanism indicating a superior quality. These are particularly required when using Un-sprung furniture.
Keyhole cover, there are many different designs available and often in different profiles - standard, euro and oval.
Refers to a cylinder shape lock, the euro profile is an over sized large key hole.
The visible part of a latch or lock mechanism once it has been morticed into the door, through which the latch or bolt protrudes. These are often an integral part of the latch or lock.
The fleur-de-lys has been popular in design since antiquity. A common feature of European coats of arms and territorial flags, the fleur-de-lys is particularly associated with the French royal houses. It translates into English as "flower of lily", and is usually taken to be an abstraction of an Iris.
The hole(s) in a latch or lock mechanism which the spindle fits through to operate the latch or lock. Latch follower is 8mm and a Lock Follower is usually 5mm but can sometimes be 8mm (it’s best to double check).
The face plate of any lock or latch, which is visible once it is morticed into the door.
Galvanising is the process by which steel or iron is dipped in and coated with zinc. This metallurgic process prevents rusting and other corrosive effects, since zinc is far more resistant to corrosion than iron or even steel. Primarily used to protect the base materials, galvanisation also can be employed for aesthetic purposes.
A style of architecture and interior design inspired by the trends in those areas which were dominant in England during the reigns of George I, II and III.
'Gothic', amongst other things, is an architectural style developed predominantly in France and spreading through Europe between roughly the 12th century and the 16th. It is generally characterized by high, pointed arches, ribbed vaults, flying buttresses and slender vertical piers. The style is echoed today throughout interior design, and many door attachments are produced in the Gothic tradition.
A small threaded screw with no external head. It is inserted into location by means of an integral hexagon/ allen key socket for driving with a key. These are commonly used to help provide a secure fit for various handles and knobs.
The handle is the part of the door opening assembly which is specifically designed to be operated by hand. A handle is distinguished from a knob by their respective shapes; a handle is long and designed to be pushed or lifted vertically whereas a knob is designed to be rotated.
Handed - Right / Left
Defines whether a handle is right or left handed. EG right handed means you would use your right hand to operate the handle.
Heavy Sprung (Double Sprung)
Refers to the quality of the spring used in a Latch or Lock mechanism to return the lever or knob, indicating a superior quality. This is particularly required when using un-sprung furniture.
The hinge comprises the flexible plates of metal on which the door is mounted and which are fixed to the doorframe. It allows one half of the hinge to remain stationary while the other half swings to open or close the door.
Metal cover to suit a rim latch/ lock designed to hold the latch in place and thus secure the door.
The kite mark is the stamp given to products which have been certified by BSI British Standards, a division of the BSI (British Standards Institution) Group. The logo itself incorporates the 'B' and the 'S' from that group, and indicates that the product has been tested and passed by it. There are no grades; either a product passes the test or it fails. An example of the standard in use is BS 3621:2007, which dictates the requirements for theft proof locks.
The knob is the round part of a door handle that is turned by hand to open a door.
Term used to describe the joint of any hinge.
Lacquer is the general term for a hard and durable coating, which can be coloured or clear.
Mechanism that holds a door closed using a sprung beveled metal tongue. It is operated by a door handle or knob. These can be tubular or flat, referring to the shape of the case. Tubular is most popular being the easiest to fit.
2-Lever, 3-Lever and 5-Lever
Refers to the number of levers used in a lock mechanism. The more levers used, the more secure the lock is.
Your basic type of door handle on a back plate. It is most commonly used on door that does not need to be locked such as a living room or dining room door. It has a Lever fixed to a back plate and operates a Mortice Latch.
This type of door handle is similar to a Lever Latch Handle. The only difference being that it has a small sized key hole cut out (known as STANDARD Profile) on the back plate below the lever handle. This is to allow a key to operate a Sash Lock morticed within the door. This type of handle is most commonly used on Back doors, Store Cupboards and Offices.
This handle type has a Lever fitted to a back plate along with a thumb turn and emergency release fitted below. It is commonly used on a door that needs to be locked for privacy such as a bathroom door. It operates a Bathroom Lock and the thumb turn commonly fits a 5mm spindle which operates the bolt on a Bathroom Lock.
This type of handle is most commonly used on Bedroom doors. It has a Lever, Thumb turn and Emergency Release fitted to a back plate. It works by a mechanism behind the plate which locks the lever handle and prevents it from being pushed down. It is used in conjunction with a Mortice Latch.
Non-glossy finish, it's often referred to as 'satin', since it has a very low level of reflectivity.
Mortice is a slot, groove or cavity carved into the style of the door to receive the lock or latch. The lock or latch which slots into this cavity is called either a mortice lock or a mortice latch.
Mortice Lock (Sash Lock)
A complete latch and lock case which is designed to be morticed into the door frame. The 8mm Follower (spindle hole) allows a handle to operate the latch and a key is used to operate the lock, available with different key profiles and centers.
Refers to an oval shape lock, the oval profile is an over sized large hole.
5 Pin, 6 Pin and 10Pin etc
Refers to the number of pins used in a cylinder lock mechanism. The more Pins used the more secure the lock is.
Porcelain is a decorative ceramic material which is ideal for the decoration of more classical, traditional handles and knobs.
Term usually applied to define the shape of a key hole - Standard, Euro or Oval.
The projection on cupboard handles is usually measured to the underside of the handle, whereas on door handles it is usually to the front of the handle.
Rebate Kit/ Set
An additional bracket to allow a latch or lock to be fitted onto rebated doors. Used with double doors when the lead door has a rebated edge, instead of a flat edge.
Rim Latch/ Lock
A traditional latch or lock mechanism which is concealed in its own case and is fixed onto the inside face of a door rather than morticed into the frame. They are operated by a Rim Door Knob and are available with or without a lock mechanism.
A pair of door knobs designed specifically to fit onto a rim latch. The main difference is that only one of the knobs will have a Rose Plate, the other fits directly onto the rim latch.
A sprung roller bolt system used to hold a door shut. The spring is usually adjustable to allow a variation in the tension holding the door and therefore the level of force required to open it. It is designed to operate with push-pull handles.
The circular sometimes square plate to which lever handles and knobs are attached. Some will be face fixed others have concealed fixings under a separate rose cover.
Sash Lock (Mortice Lock)
A lock case which is designed to be morticed into the door frame, the 8mm follower (spindle hole) allows a handle to operate the latch and a key is used to operate the lock, available in different key profiles and centers.
Traditional vertical operating window.
A square metal bar that passes through the door connecting the handles or knobs together and operates the latch or lock mechanism.
Term used to indicate that a door handle or knob is fitted with a spring in the back plate or rose to return the lever / knob once released.
An alloy of carbon and. Stainless steel doesn't rust, corrode or stain as easily as conventional steel which, alongside its decorative qualities, makes it a popular choice in construction and design.
A term referring to a key shaped hole, the Standard profile is a small sized hole for a standard UK stem key to be inserted.
A shaped plate that is fitted to the door frame to accept and hold a latch or lock bolt as the door closes. These are supplied with the relevant lock or latch but are often also available as a spare part.
The T-hinge (or tee hinge) is a hinge that, as its name suggests, looks like a 'T' when it's opened. They are more frequently used for external doors, heavy doors, or simply for decoration.
Small knob incorporated into a back plate or separately on a rose which operates a deadbolt or bathroom Lock. Supplied with a 5mm spindle and matching emergency coin release for the external side of the door.
Thumb latch is a piece of door furniture whose assembly is operated by the thumb to facilitate the opening of a door. It's a little simpler and a little more old-fashioned than modern door handles and knobs, so it's a good choice if you're trying to recreate a traditional or rustic ambience.
Tubular Mortice Latch
Tubular mortice latch is the most common way of opening or closing any door. Operated by either a handle or a knob, the latch bolt is retracted to open the door and automatically returns on a spring to close the door.
Term used to indicate that a door handle or knob is not fitted with a spring in the back plate or rose. Therefore the handle or knob will be loose and spin freely. Un-sprung handles and knobs will require a heavy sprung latch or lock.