A Yale door master lever operated latch and hookbolt overnight lock with split spindle, 20mm faceplate and 92mm centres. The Yale Doormaster Overnight Lock is a standard security cost effective temporary replacement that fits the majority of Timber and Composite doors Installation requirements: The lock requires Professional installation Door Type: Designed to replace almost all UK Timber and Composite door locks Dimensions: The overnight lock has a backset of 45mm, faceplate of 20mm Pack includes: 1 overnight lock with shortened faceplate and centre gearbox attached Fixtures and fittings included Euro profile lock case Latch & hookbolt 20mm Faceplate Split spindle Faceplate and strike to suit timber doors