Lockmaster 45mm Backset Latch Deadbolt Dual Spindle Door Lock Centre Case This 45mm Backset Lockmaster centre case is an ideal replacement unit for your multi point door lock. Suitable for Euro profile locks, this latch and deadbolt centre case has a Dual spindle operation and 92mm/62mm PZ Centres. Dual follower operation. Key Measurements and Information: Backset: 45mm PZ Centres: 92mm/62mm (distance from centre of spindle to centre of key) Follower / Spindle:  Dual Centre Case: Latch & Deadbolt Non-Handed (will fit left or right handed doors)