The Genuine Yale Replacement 45/92 Latch & Deadbolt Single Spindle Lock Box Centre Case C/W 10mm spacer is a direct replacement Yale Lockmaster gearbox designed for multipoint door locks using a Euro cylinder. Featuring a 45mm backset and 92mm (PZ) centres, this lift lever operated centre case restores smooth, secure operation to worn or failed multipoint mechanisms without the need to replace the full strip.