General description The Union 2100S StrongBOLT British Standard 5-lever mortice deadlock is designed for timber doors hinged on either side and is suitable for doors up to 54mm thick. It features a 20mm deadbolt that can be locked or unlocked with a key from either side, providing secure deadlocking and enhanced resistance against forced entry. The lock includes anti-pick, anti-saw, and anti-drill security features, with a chamfered bolt design that improves performance under side load testing and makes drilling attacks more difficult. It is supplied with a matching covered escutcheon for a neat finish. Technical specifications Case size: 81mm x 89mm (3 inches) Backset: 57mm (distance from door edge to center of keyhole) Deadbolt: 20mm with hardened steel rollers Finish: Satin Brass Supplied with 2 nickel-plated steel keys Rebate kit options: 13mm or 26mm (model 2100REB) Compatibility and accessories Suitable for timber doors hinged on either side Compatible with various UK mortice