Union Strongbolt 3 Lever Mortice Sash Lock

This polished brass variant features a 68mm case size with a 45mm backset, making it perfectly suited for doors where the lock needs to be positioned closer to the door edge. The polished brass forend finish provides an attractive, traditional aesthetic that complements classic door furniture and handles. With its 57mm centre measurement from follower to keyhole, this configuration offers reliable operation in standard residential and light commercial applications. The 45mm backset is particular