General description The Yale PM562 British Standard 5-lever mortice deadlock offers a high level of security for external timber doors. It features a single deadbolt that can be locked or unlocked by a key from either side, making it ideal for enhanced security on external front doors. Technical specifications Finish: Polished Brass Case Size: 81mm x 89mm (3 inches) Backset: 57mm (distance from door edge to center of keyhole) Deadbolt thickness: 20mm anti-saw deadbolt Guarantee: 15 years Compatibility and accessories Designed for external timber doors in solid wood Includes 2 Yale keys; additional keys can be ordered from locksmiths or hardware stores Installation Suitable for doors with a 76mm (3-inch) mortice case Requires a backset of 57mm All necessary screws and mounting hardware included Easy to install with provided instructions; no need to remove existing hardware if dimensions match Usage Locks or unlocks with a key from either side Typically used on external front doors for
