PM562 Hi-Security BS 5 Lever Mortice Deadlock 68mm 2.5in Polished Brass
The Yale Locks YALPM562PB25 PM562 Hi-Security BS 5 Lever Mortice Dead Lock 68mm 2.5 inch comes in the following:Finish: Polished BrassCase Size: 6mm x 89mm (2.5 inch)Backset: 45mm This is the measurement from the edge of the door to the centre of the keyhole.