Era Fortress Mortice Sashlock Satin 63mm Option:Satin 63mm which meet the exacting demands which meet the exacting demands of the insurance companies and the police The main lock bolt is 'automatically' deadlocked when the door is closed 2x 2166 Hose End Connectors and 2175 Tap Connector which meet the exacting demands of the insurance companies and the police 1000 key variations High security levels are delivered by a 20mm bolt throw on every lock All locks have hardened steel plates to resist drilling False notching in levers resist lock picking Interior & Exterior Material: Steel & Zinc Alloy Fixings included 10 year guarantee and warranty The British Standard High Security Mortice Lock meets the new BS 3621:2007 standard