General description The Yale PM322 3-lever mortice deadlock provides a standard level of security suitable for internal timber doors. It features a single deadbolt that can be locked or unlocked by a key from either side. The deadlock includes a 13mm anti-saw deadbolt and comes with a 10-year guarantee, ensuring reliable security with straightforward operation. Technical specifications Finish: Polished Brass Case Size: 79mm x 72mm (3 inches) Backset: 57mm (distance from the edge of the door to the center of the keyhole) Security Level: Standard (2-5 levers) Compatibility and accessories Designed for internal timber doors Compatible with standard mortice lock fittings Installation Install by fitting into a mortice cutout on the door edge Ensure the backset measurement (57mm) matches the door preparation Secure with appropriate screws and ensure proper alignment of the deadbolt and keyhole Usage Lock or unlock the deadbolt using a key from either side of the door Suitable for securing