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Willenhall M5 Non British Standard 5 Lever 2" Cranked 19mm Extended Forend Mortice Sashlock

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The Willenhall M3 mortice sash lock features 5 levers and a narrow body. This version has a cranked 175mm faceplate with either 19mm or 25mm widths. This is a unique upright mortice deadlock that features a 33mm backset and a 50mm case width. This... read more
Product Information

The Willenhall M3 mortice sash lock features 5 levers and a narrow body. This version has a cranked 175mm faceplate with either 19mm or 25mm widths.

This is a unique upright mortice deadlock that features a 33mm backset and a 50mm case width. This narrow case depth makes it perfect for use on glass doors or doors with narrow stiles. It is supplied with 2 keys.

These locks do not meet the requirements of British Standard BS3621:2007.

In line with a number of other mortice locks, these locks feature a black lock case but they have unique measurements that identify them from other mortice locks. Please refer to the line drawing for details.

The deadbolt throws 12mm and features hardened pins to protect against sawing attack.

The deadbolt can be locked and unlocked from either side by use of the key. The latch is withdrawn from either side by moving the handle

This lock is supplied with a striking box in a silver finish.

Suitable for use on doors up to 50mm thick. The thickness of the door is determined by the length of the keys. If you require this lock to be fitted to a very thick door, we may be able to supply extra long keys. Please contact us for more details.

These locks are not handed and can be used on doors hinged on the left or right, which open inwards or outwards.

Supplied with 2 steel keys as standard. We can cut additional keys for this lock, just select whether you'd prefer genuine or copy key blanks and the quantity required from the associated products on this page.

Should you require more than one lock to work on the same set of keys, these locks can be keyed alike by our inhouse locksmith team. We can typically dispatch the same day (larger quantities may require longer).

We stock a range of associated parts to these locks, including key blanks, rebate sets for use on double doors and levers. Please select the products you require from the associated products on this page.

These locks are not suitable for use on a fire door.

Willenhall locks is one of the most well established mortice lock brands in the UK. They make some unique locks that you won't find anywhere else.

Mortice lever locks (sometimes called mortise locks) are commonly fitted to wooden doors but can also be found used in steel, aluminium, and composite doors. They are locked from both the inside and outside with the key which throws the deadbolt. By definition, a mortice lock is fitted (“morticed”) within the door, rather than being fitted to the face or surface of it.

There are multiple types of lever lock in use in the UK. Dead locks (mortice dead locks) are operated by a key only whereas sash locks (mortice sash locks) feature a dead bolt and a latch which is operated by a handle (often a lever handle). Both lever locks with throw the dead bolt into a strike plate. The strike plate on sash locks also accepts the sprung loaded reversible latch.

Lever mortice deadlocks can be used for fitting to front or back doors and to internal doors and external doors, but we’d always recommend fitting a British Standard BS3621 product to external doors for maximum security. You should also check with the houseowner’s insurer’s requirements on both residential properties and commercial properties. You may find lever locks fitted to commercial properties but cylinder lock cases operated by a cylinder or pin tumbler lock are more common mortice locks fitted in commercial environments.

Lever mortice door locks are commonly used for internal doors too. These tend to be 3 lever mortice locks where the requirements for security and burglary prevention are lower.

When replacing an existing lever mortice lock, you may find that your replacement mortice lock is larger than the one that you are replacing. This may be because you are improving security, such as upgrading to a lock with thicker, anti-drill hard steel plates or because the forend length, forend width or the design of the lock has changed. The hole for the lock can normally be made larger with a hammer and chisel. This can also be the case for strikes, which may have changed design.

When fitting a lever mortice lock to new timber doors, we’d recommend using Souber’s DBB morticer for quick results. You can find the DBB1 morticer here: https://www.duffells.com/souber-dbb-mk2-mortice-jig.html.

Please always ensure that your door is sufficiently thick to accommodate the mortice lock that you are fitting. The Master Locksmith Association recommend a minimum thickness of 44mm.

A lever mortice lock prevents a door from opening by throwing a bolt from the lock into a metal keep or strike, fitted to the frame. Once the bolt is engaged in the keep, a hinged door is prevented from being opened. A mortice lock bolt is locked or unlocked from either the inside or outside by a key. Inside the lock, there is space for the bolt to be retracted. If the cuts in the key match the levers inside the lock, the user will be able to turn the key to throw (to lock) or withdraw (to unlock) the bolt. If the wrong key is used, the levers will not line up and the lock will not operate.

Duffells stocks a huge range of mortice locks at all levels of security. All of our lever mortice door locks are available for delivery in as little as 24 hours. We offer a range of express delivery options as well as standard delivery and you can find delivery details on our thousands of products on our delivery info page.

Product Specification
  • Product category: Mortice Sashlock
  • Product type: 5 Lever
  • Case colour: Black
  • Handle piercing size: N/A
  • Case height: 108mm
  • Centres: 57mm
  • Faceplate height: 152mm
  • Faceplate width: 19mm
  • Deadbolt throw: 12mm
  • Follower size: 8mm
  • Keys: 2
  • British Standard?: No
  • UKCA marked?: No
  • CE marked?: No
  • Certifire approved?: No
  • Fire rated?: No
  • Can be keyed Alike?: Yes
  • Handed?: Non handed
  • Escutcheon plates supplied: No
Product FAQs

Do you have any top tips for these?

This version has the cranked forend, in either 19mm or 25mm widths.


How far does the deadbolt throw?

The deadbolt throws 12mm and features hardened pins to protect against sawing attack.


What is the operation?

The deadbolt can be locked and unlocked from either side by use of the key. The latch is withdrawn from either side by moving the handle


What is supplied with this item?

This lock is supplied with a striking box in a silver finish.


What door size does this suit?

Suitable for use on doors up to 50mm thick. The thickness of the door is determined by the length of the keys. If you require this lock to be fitted to a very thick door, we may be able to supply extra long keys. Please contact us for more details.


How many keys are supplied?

Supplied with 2 steel keys as standard. We can cut additional keys for this lock, just select whether you'd prefer genuine or copy key blanks and the quantity required from the associated products on this page.


Can these locks be keyed alike?

Should you require more than one lock to work on the same set of keys, these locks can be keyed alike by our inhouse locksmith team. We can typically dispatch the same day (larger quantities may require longer).


Are they BS3621 British Standard?

No, these locks do not meet BS3621


Are they suitable for use on a fire door?

These locks are not suitable for use on a fire door.


Are they UKCA certified?

No, these locks are not UKCA certified


Are these lever mortice locks CE marked?

No, these locks are not CE marked


Do these mortice locks have a Certifire certificate?

No, these locks do not have a Certifire certificate


Are these lever mortice locks handed?

These locks are not handed and can be used on doors hinged on the left or right, which open inwards or outwards.


Do these meet insurance company requirements?

Most insurance companies require mortice locks on external doors to meet BS3621. These locks don't meet that standard but your customer should always check their insurance policy.


What is a mortice lock?

By definition, a mortice lock is a lock that is "morticed" into a door so that it cannot be seen, for a flush fit finish. Mortice locks are available in a range of different types including sashlocks, deadlocks, bathroom door locks, detainer locks and cylinder lock cases.


What is the difference between a deadlock and a mortice lock? Or what is the difference between a deadlock and a sashlock?

A mortice deadlock has a dead bolt which is operated by a key. A mortice sashlock normally has a deadbolt and a latch which is normally retracted by a lever handle.


What is the difference between 3 lever and 5 lever mortice locks?

Practically, a 5 lever mortice lock has additional levers, when compared with a 3 lever mortice lock. The result is that the lock is harder to pick and offers higher security.


A mortice locks a standard size?

Common mortice locks are either 2.5" or 3" wide but there are lots of exceptions to this. Please be sure to check the sizes in the product selection table before ordering.


All product options

All product options
Product Code Faceplate Width DiscountPriceStockQuantity
M5EC19S
19mm
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M5EC25S
25mm
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