Chubb 3U74E - 5 Lever Mortice Sashlock 80mm (3") BS3621 Satin Chrome

• Case Size: 80mm x 111mm
• Backset: 57mm this is the measurement from the front of the lock to the middle of the key hole.

• BS3621:2007 Recommended by insurance companies and police
• Deadbolt locked or unlocked by key from either side
• Latch bolt withdrawn by lever handle from either side
• Extended 20mm deadbolt for secure positive deadlocking and additional resistance against attack
• Reversible latch bolt from outside of case
• Anti-pick and anti-saw security features
• Deadbolt: Brass, with hardened steel rollers
• Latch Bolt: Brass, reversible
• Follower: Brass, 8mm square

Please see photos for more details