How do I determine the handing of a door?

The handing of a door is always determined by facing the exterior of a door.

When ordering a handed product, specify LH or RH. Not all products are handed; only specify handing when required.

How long is my guarantee?


Please click here to view the Lockwood guarantee.

What can I use to clean my Lockwood product?


Do not use solvents or abrasive cleaners on any components as this will destroy the protective clearcoat finish and void the guarantee.
Please use a water dampened, soft cloth to remove fingerprints.

A mild soap solution applied with a soft cloth will remove oil or accumulated dirt build-up.

Note: Avoid products that state on the label that they remove tarnish and rust or that they contain acids or caustic agents.

Product Related Questions

001 Deadlatch | 355 Deadlock


When I put the key in the outside cylinder it is free spinning without locking the lock.
The tailpiece on the outside cylinder has been cut to short or is not connected to the hub.

The lock will not deadlock or function properly.
The tailpiece on the outside cylinder has been cut to long as is protruding into and interfering with the lock mechanism.

The safety release on the 001 deadlatch is not operating properly.
If the lock has been re-keyed, the cam on the back of the inside cylinder (which operates the safety release) has not been reset correctly the safety release feature will not work.

I have an outward opening door, can the 001 deadlatch be fitted in this situation.
Yes, but if the door is outward opening or metal frame you will need to order the version of the 001 to suit these applications.

I lock the 355 deadlock from outside with the key, but the inside does not deadlock.
The deadlocking of the 355 is a very manual process, as the internal and external locking operate independently.

Commercial Door Furniture


Fixing screws tight, but furniture loose on door
Furniture screws too long

Furniture screws difficult to tighten
Burrs on screws – Must de-burr screws when cutting to length.

Turn snib difficult to operate
Tail bar not cut to correct length or turn snib misaligned on door.

Can I change the door furniture handing on the Securafix products?
Changing the handing on the plate moves the hex nuts to the wrong side of the door. The furniture fixing will not clutch when fitting and will clutch when loosening.

Why can I not use the entire selection of lever handles on the narrow stile furniture?
The clearance on the narrow stile will not allow some levers to function.

Commercial KNK/KNL


What is the baffle for in the 930 series locks?
The baffle helps to achieve correct alignment between the lock and latch, minimising installation issues.

530 series lock loose on door
Loose fixing screws – possibly loosened over time/use – maintenance, or:
Incorrect door preparation, and screws left loose to compensate/permit operation of the lock

Knobs/levers binding

  • Incorrect door preparation
  • Lock damaged in heavy/rough use – this is often a result of the product being used in a heavy-use commercial environment, which it is not designed for
  • Heavy operation of the external handle on the 530/930 combination sets – this is a consequence of the design of the lock, and should not be specified when difficulty of operation could be an issue. The CML will achieve these functions and maintain ease of operation
Commercial Mortice Locks (3572 & 3582 series)


Lock will not lock when key is operated
Check cam on cylinder is correct. Is the hub setting correct?

Woodchips or metal filings in lock case
Locks are supplied with cylinder covers fitted. If these are removed and the lock exposed to debris, problems can occur.

Difficulty in locking a lock set to anti-lock-out function
Incorrect alignment of the strike plate, preventing the latch from fully throwing will make it difficult or impossible to lock the lock.

Digital Locksets


Turn knob difficult to operate
The alignment or installation of code pad is incorrect or the connecting bar has not been cut to the correct length.

Turn knob doesn’t open when you enter your code
The ‘C’ button has not been entered at the start of the code.

Problems that contribute to premature wear of the code pad mechanism

  • Not pushing the “C” button at the start of the code
  • Pushing multiple buttons at the same time (e.g. top 4 buttons of code pad)
  • Pushing multiple buttons while trying to operate the turn knob
Door Closers


The door is closing too fast or too slow
Adjust the closing and latching speed valves to achieve a suitable door closing speed.

The door closer is not latching the lock properly

  1. First, ensure the door is swinging and latching freely with the door closer disconnected from the door.
  2. Check if the door closer is the correct power for the door
  3. Check if the door closer is installed correctly
  4. Check if the door closer is adjusted correctly (power, closing, latching)

My parallel arm door closer is lacking power

Need to factor in power loss of approximately 20% when using parallel arm configuration. Additionally, arm must be pre-loaded per the instructions.

My slide rail door closer will not let the door open all the way.
Slide rail door closers have limitations on how far the door may open. This should be assessed prior to installation of the door closer, for suitability of the closer to the door. A door stop should be used to prevent opening the door past the closers’ limit.

Does temperature affect the hydraulic valve settings?
Yes, it can and its affect may be noticeable at extremes of heat and cold.

Electro-Mechanical Products


Does “fail secure” mean that people will be locked in if the power is cut?
No, not necessarily. Products should be configured in a way to ensure safety and security.

  • Example 1: Electric mortice lock can be set as fail secure, with vestibule function.
    This means that the inside handle is always free, and the outside handle will be locked when there is no power to the lock.
  • Example 2: Electric strike can be set as fail secure and used with a vestibule function lock.
    The lock will provide the egress and the strike will remain secure when there is no power to it.

Why are mag-locks only available in fail-safe?
The electro-magnet requires power to energise the magnet.

Can electro-mechanical locks be fitted to glass doors?
Yes, this is a rapidly growing area and there are many options available, using patch fittings and adhesives as alternatives for mounting. There is a product catalogue dedicated to this area, called “Electro-Mechanical Locks for Glass Doors”

I have a door with an electric strike, when the strike is activated, the door needs to be “rattled” to get it to open.
This is usually a result of the strike being subject to pre-load conditions. When the door is rattled, it briefly removes the pre-load, allowing the strike to release.

I have a door with an electro-magnetic lock, it sometimes releases just from trying to open the door firmly.
Electro-magnetic locks can suffer from a significant reduction in holding force if the lock and armature become misaligned. A mag lock should not be the only item securing a door.

Internal Door Furniture


Fixing screws tight, but furniture loose on door
Furniture screws too long.

Furniture screws difficult to tighten
Burrs on screws – Must de-burr screws when cutting to length.

The holes previously drilled in the door are too small for door furniture I purchased
In a retrofit situation, if the previous door furniture is old often the holes drilled for the furniture are not suited to the new furniture and may need modification.

The backset for the door furniture is not the same as previous door furniture
In a retrofit situation, if the previous door furniture is old it may have a different backset - Many of the new door furniture products have adjustable backsets built into the latches.

How does the emergency release function on the privacy sets work?
There will be a release, turn button or other device built into the door furniture to allow access in the event of an emergency.



What stops other people from duplicating someone else’s restricted keys?
Restricted keys rely on legal protection from Patents and Design Registrations to prevent others from manufacturing the keyblanks. Before anyone is given access to the keyblanks they must enter a distribution agreement which does not allow them to cut keys without proper authorisation.

How long does a keying system last?
The intellectual property protection can last up to 20 years from lodgement. In practice, most mechanical keying systems are due for replacement after 5-7 years in use; this is a result of changes to requirements and losing or tracking of keys whereabouts.

Nexion Keyless Entry Lockset


Will I be locked out if the batteries go flat on my Nexion Keyless lockset?
No, the lockset can be operated with the standard keys provided.

Can I use rechargeable or Lithium batteries in my Nexion Keyless entry lockset?
No, rechargeable & lithium batteries do not have enough voltage force to throw the locking bolt.

Is there hard-wiring required for the Nexion Keyless entry lockset?
No, the Nexion Keyless entry lockset runs off 4 good quality AA alkaline batteries.

Can I purchase a mechanical Nexion and then add the electronic parts to it in the future?
No, you can replace the Mechanical with the Keyless, but you can not just add electronic components to the Mechanical version.

If I lose one of the remotes to my Nexion Keyless Lockset, can someone get in easily?
No, you can quickly re-program the Nexion and the lost remote will no longer operate the lock.

What is the range of the remote control?
Approximately 3 metres depending on the environment and battery strength, for example if there is a metal screen door installed in front of lockset, the range will be reduced.

The remotes will not operate my Nexion Keyless lockset.
Either your batteries are flat or incorrectly fitted. The remotes may not have been programmed in properly or it could be an alignment or installation error.

How easy is the Nexion to fit to a door?
Preparing the door for fitting the Nexion is aided through the use of a metal drilling template which is provided in each pack and when used in conjunction with the supplied instructions ensures that all holes are correctly placed. Handing of the lockset is also easily changed with no disassembly of the lockset required.

Can the Nexion be fitted in a new installation only?
No, the Nexion can be retro-fitted over many standard locksets.

Onyx Sliding Door Deadlock


The locking beaks do not line up with the striker.
The reasons for this happening are:

  • Fitting template has not been followed correctly and striker height needs adjustment.
  • Fitting template has not been followed correctly and holes for lock body are out of position.
  • Because of the different types of door sections in both timber & aluminium, there may be a requirement for an extra width striker or a striker or lock body packer.

The key and internal turn snib are hard to operate.
When fitting the lock rather than using the recommended 10mm drill bit when drilling holes for the lock body, an undersize hole has been drilled. This will cause the cylinder turn bar to bind on edges of the drill hole.

I have fitted the Onyx from the display pack and it appears to be working correctly, but there are many parts left over.
There are extra parts provided in the retail display pack because of all the different door sections and configurations in the marketplace.

Padlocks & Padlock accessories


What can I do about problems with padlocks corroding?
Select a grade 4 corrosion rated padlock – for the harshest of applications, such as marine use, use the stainless steel bodied and shackled marine grade padlocks.

The key is difficult to operate in my padlock.
As padlocks are often in exposed positions, lubrication of the cylinder may be required more often than with other locks.

My padlock case was cut with a hacksaw to open the padlock.
Brass (and stainless steel) padlocks are susceptible to this, for highest security, use a padlock with a hardened steel case.

Someone has unscrewed the locking plate on my factory gate and escaped with my goods.
All padlock accessories are supplied with suitable fixings for normal installations, it is important that they are used to maximise security.

Panic Exit Devices


How do I know when I need to use a panic exit device instead of a lever handle?
The general guide is that if more than 100 people access the room, a panic exit device will likely be needed, although the BCA does provide for some exemptions.

Can I use a panic exit device instead of a lever handle?

Are all doors with panic exit devices fire doors?
Not necessarily, the requirements are from different parts of the BCA.

9000 series

Can the panic exit bar be matched to my existing door hardware for external access?
Yes, the 9500 series is matched to a mortice lock, which can use external 1800 & 2800 series door furniture to match with existing commercial hardware.

5000 series

The cross bar on my 5000 series push bar is being damaged by rough use.
The 9000 series are far more resistant to abuse, as the touch bar is fully supported across the door.

Paradigm Deadbolt


Why is the bolt shorter on the Paradigm in comparison with other deadbolts?
The Paradigm bolt is actually longer than the bolt on most deadbolts. To achieve the highest security levels and strength half the bolt is in the door and half is in the frame

When I am using the turn knob or the key the bolt is not throwing.
The bolt tailpiece has not engaged with the lock mechanism.

Do I need to fit the door frame strengthener on the Paradigm?
It can be fitted without the door frame strengthener, but you will compromise your security on the lock and it may not meet level S3 of the door lock standards.

Do I need to fit the anti-rotation pins when I fit my Paradigm?
Yes, if they are not fitted the lock if forced may rotate, causing damage and possibly unlock.

The Paradigm is not operating properly.
Check operation with the door open – if OK, adjust strike position on frame. Alternatively, check the correct length tailpiece has been used and that the lock has been correctly aligned during installation.

Glossary of terms

Anti-Friction Latch Bolt

The latch bolt of a lock equipped with a device for reducing friction between bolt and strike. Usually a small trigger attached to the bolt contacts the strike and exerts a lever action to depress the bolt.

Auxiliary Bolt

An additional bolt which is activated by the strike when the door is closed, automatically dead latching the latch bolt against end pressure.

Awning Window

A window with an outward opening sash, hung about a horizontal axis at the top or on friction stays at the sides.


The feature of a door closer unit that prevents shock and possible damage when the door is forcibly opened.


The horizontal distance from the face of the lock to the centre line of the cylinder, key hole or knob hub.


A cylindrical portion of the cylinder that rotates when the correct key is used.


A sliding door or window with sections that fold onto one another as the door opens.

Box Strike

A strike in which the latch bolt recess is enclosed or boxed, thus covering the opening in the jamb.


A lever attached to the end of a barrel to activate the lock mechanism.

Casement Window

A window with a sash hung about a vertical axis by hinges at the side.

Construction Key

A key supplied with construction keyed locks. During construction, a builder gains entry using the construction key. On completion of the building, action is taken to render the construction key inoperative, preventing further entry by the builder.

Construction Keying

System used to allow contractors to gain entry to a building during construction but to prevent entry by the same contractors after the building has been occupied or handed over.


The assembly incorporating the key operated mechanism.

Dead latch

A lock containing a dead latch bolt.


A bolt which is not activated by a spring. When locked the bolt cannot be returned by end pressure.

Deadlatch Bolt

A spring actuated bevelled latch bolt which operates in conjunction with an auxiliary bolt which automatically locks the latch bolt against return by end pressure.


A lock incorporating a deadbolt.

Deadlocking Latch

A lock with a spring-actuated latch bolt. When the door is closed, the key or turn knob is operated to deadlock the latch bolt against return by end pressure.

Delayed Action

A feature of a door closer which holds the door in the open position for a number of seconds before the closing action commences. This feature is ideal for use by the handicapped, the aged and people with prams, trolleys, etc. The SAA Fire Door code approves the use of delayed action closers on fire doors.

Disc Tumblers

Flat discs or wafers which are spring loaded to prevent the cylinder plug from rotating until the correct key is inserted.

Double Hung Sash Window

A window with two sashes which slides vertically in a window frame.

Dummy Trim

A non-operating door trim which is installed for appearance or as a door pull only.

Electric Strikes or Door Opener

An electrical device that replaces a regular lock strike to enable a door to be released by remote control.


Final cover treatment of the product for appearance and protection, in both plated finishes or powder coat colour.


Fittings complimentary to the lock systems, such as handles and escutcheon plates.

Grand Master Key

A key which will operate two or more groups of locks, where each group can be operated by individual master keys and locks within each group can be operated by different service keys.

Handed Products

A product designed or assembled for use only on right hand doors or only left hand doors, but not both.


The direction of door travel (swinging or sliding) and the locking/secure side of a door, eg. Right hand (opening out), left hand (opening out). click here for more infomation


A catch or other device on a lock which can hold the latch bolt in the retracted position.


The feature of a door closer unit which enables a door to be held in the opened position until released.

Indicator Bolt

A slide-action bolt installed in areas where privacy is desired (such as toilets and bathrooms) which provides visual indication that the room is occupied or vacant.


Vertical posts or pieces that together form the sides of a door or window frame.

Keyed Alike

Indicates identical key for 2 or more locks.

Keyed to Differ

A different key is needed to activate each lock. 


The fastening on a door that fits into the notch or slot on a door jamb and is lifted from either side by the handle.

Latch bolt

A spring actuated, bevelled bolt usually operated by door furniture.


A lock, complete with strike and door furniture, such as knobs, levers, escutcheons, or handles.

Maison System

A keying system suitable for apartments, flats, offices, hotels and motels. Each apartment, flat or office has its own key which will not operate the locks to another apartment, flat or office but will, however, operate the locks to communal entrances and service areas.

Master Key

A key which will operate a group of locks, each built to operate on a different service key.


An opening made to receive a lock or other hardware. Also the act of making such an opening.

Mortice Lock

A lock designed to be recessed into the edge of a door, rather than being mounted to its surface.

Negative Pressure

A pressure imbalance between the inside and outside of a window/door resulting in a force tending to pull the window/door off a building.


A lock with a spring-actuated latch bolt.


The ability to reverse the product or key component to suit left or right-hand installation.

One-Way Screw

Screws with specially shaped heads to prevent removal by conventional screwdriver.

Parallel Arm Door Closer

A type of door closer installation where the arm is mounted parallel to the door, for use where the door closer is installed on the inside of an opening out door.

Passage Set

A term commonly used to describe a latch set with handles on both sides of a door but no locking function.

Patio Lock

A lock designed with a pushbutton or turn button inside to lock the outside handle. When so locked, there is no entrance by key from outside.

Pin Tumblers

Small sliding pins in a lock cylinder which work against coil springs and prevent the cylinder plug from rotating until the correct key is inserted.

Pivoting Sash

Window sash with a sash arm assembly that enables it to be opened outward as in both casement and awning applications.


Polyester-based coating for aluminium products providing a smooth colour finish.

Privacy Set

A term for locks used on bathroom and bedroom doors having an inside button or turn knob to lock the outside handle and usually an emergency function which will unlock the set from the outside.

Rebated Door

A door where the leading edge is stepped.

Rebated lock/latch

A lock which has the faceplate and strike shaped to match the rebated edge of a door, usually the meeting edges of two door leaves.

Reversible Lock

A lock with the components that can be readily adapted to enable the lock to suit door of either hand, opening in or out.

Rim Lock, Rim Latch

A lock or latch which is mounted to the surface of a door, rather than inserted into the edge of the door.


A frame in which the panes of a window or door are set.

Service Key

A key which will only operate the lock that has been built to suit that service key.

Single-Action Escape Lock

A lockset installed to a door where exit is obtained by a single action without the use of a key.


A device used to either lock or unlock the lockset.


The drive shaft that connects the knob or lever to the latch or lock mechanism to operate the bolt.


Friction hinge – top brace and support the window sash for opening. Also known as friction hinge.


A device fixed in or on a doorjamb into which the lock or latch bolt engages when the door is closed.

Strike Box

A security component used in conjunction with the strike plate to help protect the bolt against end pressure.

Surface Mounted

The lock is mounted on the surface of the door stile.

Tubular Bolt/latch

A bolt having a tubular case.

Turn Knob

Turning mechanism that activates the door lock from the inside, a convenient locking option in place of a key.


A hall or lobby next to the entrance door of a dwelling and from which other doors open to various rooms.


See Disc Tumblers.