Description The Union StrongBOLT 2100S BS 5 Lever Mortice Deadlock is a high-security lock suitable for timber doors up to 54mm thick. It features a 20mm deadbolt that can be locked or unlocked with a key from either side, providing reliable deadlocking and enhanced resistance against forced entry. Designed with security in mind, it offers anti-pick, anti-saw, and anti-drill protection, along with a chamfered bolt that improves performance under side-load testing and makes drilling attacks more difficult. The lock is supplied with a matching covered escutcheon for a neat finish. Specifications Size: 81mm Backset: 57mm Finish: Satin Chrome Compatibility and Accessories Suitable for timber doors hinged on either side Rebate kits available in 13mm or 26mm (model 2100REB) Keying groups available for different or same keying Supplied with 2 nickel-plated steel keys Installation Features a radius inner forend for easy installation into many UK mortices without additional carpentry Supplied