The Insurance Approved Mortice Deadlock is a high-security lock designed to meet the stringent requirements of insurance companies and provide robust protection for your property. It features a 5 lever mechanism for superior security against tampering, is BS 3621 certified, and has a solid stainless steel deadbolt with a 20mm throw. Key-operated from both sides. Secured By Design, and is fire rated for use on 30-minute and 1-hour timber fire doors. Available in polished brass and satin chrome plate, and other finishes, it comes in two sizes (63mm and 76mm) to fit different door thicknesses, making it an ideal choice for residential and commercial properties requiring high-security locking solutions.