Yale PM562 High Security BS 5 Lever Mortice Dead Lock 64mm 2.5-inch - Polished Chrome Finish - 2 Keys included

Era 472-61 2.5-inch/ 64mm 3 Lever Deadlock - Chrome Effect

Union/Chubb 3G114E - 5 Lever Deadlock - BS3621:2007-67mm Case - Satin Chrome - Heavy Duty Deadlock - Supplied with 3 Extra Keys Free of Charge Worth Over £14.40

ERA Fortress 261-31A, 2.5-inch/ 64mm 5 Lever Maximum Security Mortice Deadlock - Brass Effect

TSS High Security 5 Lever British Standard Mortice Deadlock with 3 Keys and Fixings, 3" (81mm) Polished Brass, Insurance Approved for External Doors, British Standard BS3621:2007

TSS High Security 5 Lever British Standard Mortice Deadlock with 3 Keys and Fixings, 2.5" (68mm) Polished Brass, Insurance Approved for External Doors, British Standard BS3621:2007

TSS High Security 5 Lever British Standard Mortice Sashlock with 3 Keys and Fixings, 3" (81mm) Polished Chrome, Insurance Approved for External Doors, British Standard BS3621:2007

TSS High Security 5 Lever British Standard Mortice Deadlock with 3 Keys and Fixings, 2.5" (68mm) Satin Chrome, Insurance Approved for External Doors, British Standard BS3621:2007

ERA Viscount 2.5-inch/ 64mm 5 Lever High Security Mortice Deadlock - Chrome Effect

ERA Fortress BS 3621 2.5-inch/ 64mm 5 Lever Maximum Security Mortice Deadlock - Chrome Effect, Grey