General description The Yale PM562 British Standard 5-lever mortice deadlock provides high security for external timber doors. It features a single deadbolt that can be locked or unlocked by a key from either side. This lock is recommended by insurance companies and is certified to BS3621:2007, as well as being approved by the police Secured by Design initiative. It includes a 20mm anti-saw deadbolt and an anti-drill case, ensuring enhanced security. The product comes with a 15-year guarantee. Technical specifications Finish: Polished Chrome Case Size: 68mm x 89mm (2.5 inches) Backset: 45mm (distance from the edge of the door to the center of the keyhole) Compatibility and accessories Designed for external timber doors Compatible with standard mortice lock fittings Installation Install into a prepared mortice hole matching the case size Ensure the backset measurement is correctly aligned with the door’s edge Secure the lock with appropriate screws and ensure proper alignment of the