General description UNION's basic range of ESSENTIAL products offers uncomplicated solutions that provide true value for money without compromising on performance and quality. The ESSENTIAL 3 Lever Mortice Sashlock is a high-security lock suitable for timber doors, featuring a robust deadbolt and enhanced security measures against picking, sawing, and drilling. Technical specifications Case size: 79 x 101mm Backset: 58mm Centre distance: 57mm (from handle follower to keyhole) Deadbolt: 12.5mm or 20mm, lockable from both sides with key Suitable for doors up to 54mm thick Compatibility and accessories Compatible with UK mortice doors Supplied with matching strike plate and faceplate Rebate kits available for different door thicknesses (13mm or 26mm) Installation Designed for quick installation into standard UK mortices Open case reversible latch for flexible fitting Includes a square follower (8mm) for handle operation Usage Locks and unlocks with a key from both sides for secure