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Chubb Locks

It is recommended that all external doors are fitted with a 5 lever mortice lock. A mortice lock provides greater front, side and back door security by being physically embedded, or 'morticed', into the door itself.

It is recommended that all external doors are fitted with a 5 or 7 lever mortice lock. A mortice lock provides greater front, side and back door security by being physically embedded, or 'morticed', into the door itself.

 
Always fit a lock certified to BS3621. These can be identified by the British Standard kitemark symbol.

Chubb Mortice locks come with different numbers of lever mechanisms, usually 2, 3, 5. The higher the number of levers, the more difficult the lock is to pick because it allows for greater key variations. British Standard 5 lever mortice locks must have over 1000 different key variations, whereas a 7 lever has around 6000.

Face plate
visible side of the mortice lock
Case size
width of the mortice lock body
Backset
distance from the centre of the key hole to the face plate
Centre
distance from middle of the follower to the middle of the keyhole
Follower
hole for handle, turning operates the latchbolt
Deadbolt
main form of defence against attack, throws into door frame
Latchbolt
holds the door closed

Chubb Mortice deadlocks have a single bolt which is operated by a key. This type of lock should be used on a main entrance door in conjunction with a nightlatch (to hold the door shut when it is closed).
Chubb Mortice deadlocks have a single bolt which is operated by a key. This type of lock should be used on a main entrance door in conjunction with a nightlatch (to hold the door shut when it is closed).
Chubb Locks
Chubb Locks
3U114E/3G114E British Standard 5 lever deadlock is certified to and EXCEEDS BS3621 3K74E/3U74E British Standard 5 lever sashlock is certified to and EXCEEDS BS3621
Certified to 633621:1998-independent testing for strength and performance Recommended by Neighbourhood Watch and the Police Secured by Design accredited Chubb Deadlock
Certified to 633621:1998-independent testing for strength and performance Recommended by Neighbourhood Watch and the Police Secured by Design accredited Chubb Sash Lock
Chubb Features and benefits:
5 lever mechanism - minimum reguirement for British Standard
Hardened steel rollers in deadbolt to prevent saw attack
Hardened steel plate on case to prevent drill attack
Heavy duty box striking plate provides added strength to door frame
20mm deadbolt helps prevent forced attack
Available on patented Chubb RKS System (see page 10)

Comes with 3 Keys
25 Years Gurantee/Warranty

Insurance Approved
Chubb Features and benefits:
5 lever mechanism - minimum requirement for British Standard
Hardened steel rollers in deadbolt to prevent saw attack
Hardened steel plate on case to prevent drili attack
Heavy duty box striking plate provides added strength to door frame
20mm deadbolt helps prevent forced attack
Available on patented Chubb RKS System (see page 10)

25 Years Gurantee/Warranty
Insurance Approved
Case size: 67mm or 80mm
Backset: 40mm or 53mm (3G114E) Backset: 44mm or 57mm (3U114E)
Case size: 67mm or 80mm
Backset: 40mm or 53mm (3K74E) Backset: 44mm or 57mm (3U74E)

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