The ERA Fortress 5 lever British Standard High Security Mortice Lock to BS3621:2007 meets the exacting requirements of insurance companies and the police. The high security levels are delivered by a 20mm bolt throw on every lock, and both the Sashlock and Deadlock have hardened steel plates to resist drilling, and two hardened steel plates in the deadbolt resist attack by hacksaw. The keys have 1,000 variations for extra high security. All steel levers have false notching to resist lock picking. The Fortress deadlock case is also supplied with two key escutcheons in a matching finish.