A direct replacement for the Chubb 3K74E. Kitemarked BS3621:2007 sashlock. Approved by insurance companies and the police. For timber door hinged on the left or the right.

The Union 3K74 series British standard 5 Lever Mortice rollerbolt sashlocks are suitable for use on timber doors hinged on the left or right and are also suitable for use on doors up to 50mm thick. The lock has a deadbolt operation and is locked or unlocked by key from either side with the latch bolt being withdrawn by a lever handle from either side.

It has force resistant, anti drill, anti-pick and anti-saw security features and is available with square forend and striking plate with a 14mm bolt throw. They are also pierced to accept bolt through furniture.

The 3K74E series locks are recommended by insurance companies, kitemarked to BS3621: 2007 (British Standard) and has been approved by the police Secured by Design initiative. They are also covered by a 25 Year guarantee.

Deadbolt:  Brass, with hardened steel rollers
Latch Bolt:  Roller bolt (non handed)
Follower: Sintered Iron, 8mm square
Keys supplied:  Standard differ supplied with 2 keys. For locks to pass please specify number of keys required.
Key Blank Number: B-K722 (standard)
Cut Key Number: B-5LC
NB Not suitable for master keying
Rebate Kit B-3K74R (13mm, 19mm and 25mm)

EN1634-1 assessed for use on 60 minute timber fire doors

Available in the following sizes:

• 67mm
• 80mm

And in the following finishes:

• Brass
• Satin Chrome

Ref: image 4