Y2077 Horizontal mortice locks are for use with larger, traditional door furniture where greater clearance is required. Reversable latch bolt for use on timber doors hinged on the left or the right, up to 54mm thick. The latch is withdrawn by a two-way action, suitable only for sprung lever handles or knobs, and pierced to accept bolt through furniture. Case Size - 124mm (5in) or 149mm (6in), Backset - 38mm or 51mm. Deadbolt Brass, with hardened steel rollers. SC - Satin Chrome finish PL - Polished Brass finish.