Case Depth: 67 mm Key Backset: 44 mm features: Securit 5 lever mortice sashlock Recommended by police and insurance companies Latchbolt operated by lever handles Latch is reversible Deadbolt operated by key Drill resistant side plates Deadbolt with hardened steel rollers and with security box staple 23mm Bolt projection 8 mm Follower to suit sprung levers 1,000 Differs 2 no keys supplied BS 3621 BS EN 12209 For additional keys and rebate kit see Related Products