General description This polished brass 3-lever mortice sashlock is designed for both residential and commercial doors. It provides secure locking with a positive deadbolt that can be operated from both sides using a key. The lock is easy to install in many UK door mortices without additional carpentry or modifications. It features an open case reversible latch and a single-piece forend with a matching strike plate, ensuring durability and aesthetic consistency. Technical specifications Finish: Polished brass Case size: 65 x 101 mm Backset: 45 mm (distance from door edge to the center of the keyhole) Centre: 57 mm (distance from handle follower center to keyhole center) Deadbolt: 12.5 mm, lockable/unlockable with key from both sides Compatibility and accessories Suitable for standard UK mortice doors Includes matching strike plate Installation Designed for easy installation in many UK mortices without additional carpentry Reversible latch for flexible fitting Usage Provides secure