General description The Union 2177 3 lever mortice deadlock is designed for timber doors, suitable for doors up to 54mm thick. It features a polished brass finish and a matching striking plate, providing reliable security with a standard level of protection through its 3-lever mechanism. The deadbolt can be operated by a key from either side and includes a 12.5mm anti-saw deadbolt for enhanced security. Technical specifications Finish: Polished Brass Case Size: 65mm x 70mm (2.5 inches) Backset: 44.5mm (distance from door edge to center of keyhole) Deadbolt: Brass with hardened steel rollers Security Level: Standard (3 levers) Keying: Supplied with 2 keys; keying groups may be matched or differ with other models Compatibility and accessories Compatible with rebate kits (13mm, 19mm, or 25mm) Can be keyed alike or differ with models 2077, 2157, 2277, and 2477 Installation Designed for timber doors with a case size of 65mm x 70mm Requires a backset of 44.5mm from the door edge to the