The SCHUCO Lever Operated Latch & Deadbolt 92PZ U-Rail Lock Case has 35mm backset, 92mm centres, is single spindle, latch & deadbolt centre case, 181mm case height, 49mm case depth and has 24mm u rail faceplate width. It has a 10mm spindle and is suitable for use with bolt through fixing Schuco door furniture. HandingThe latch can be reversed by unscrewing the cover plate, removing the Y shaped plate, and lifting the latch retaining spring. Once reversed, reassemble the lock in reverse order. OperationLocking Method – Sash 1. Standard sashlock operation with the deadbolt operated by the cylinder and the latchbolt operated by the handle.