2201 5 Lever Mortice Sashlock Brass Finish 77.5mm 3 in Visi

Forend Finish: Brass (Striking Plate Security box type, finished to match forend)Case Size: 77.5mm x 108mm (3in)Backset: 57mm This is the measurement from the edge of the door to the centre of the keyhole.Centre: 57mm This is the measurement from the centre of the follower, which operates the handles, to the centre of the keyhole. In the UK this is commonly 57mm.Pack: Visi Pack