Yale British Standard Door Lock Maximum Security 5 Lever Deadlock features:
- Chrome
- 64mm (2 1/2″)
- Offers a very high level of security and are suitable for use on external timber doors. The deadbolt is locked or unlocked by key from either side.
- These deadlocks also have a 20mm anti-saw deadbolt, an anti-drill case and have a 15 year guarantee.
- Backset: 45mm This is the measurement from the edge of the door to the centre of the keyhole.