For timber doors hinged on the left or right. Keys suitable for doors up to 54mm thick. Deadbolt locked or unlocked by the key from either side. 20mm deadbolt for secure positive deadlocking and additional resistance against attack. 2100S can be keyed alike with 2200S. Anti-pick, anti-saw and anti-drill security features for resistance against attack. Chamfered bolt design increases the performance of the lock under side load testing. The chamfer of the bolt also makes drilling attack more difficult. Supplied with covered escutcheon to match forend. Radius inner forend for ease of installation. Can be installed into many UK mortices without the need for additional carpentry or spoiling the edge of the door. Anti-pick and keyhole protection prevents forced entry by picking. Hardened steel pins provide resistance to attack from sawing. Tested to BS3621:2007. EN 1634-1 assessed for use on 60 minutes timber fire doors. Secured by design accreditation. 10 Year Guarantee.