StrongBOLT 22WCS Mortice Bathroom Lock Stainless Steel 68mm 2.5in Visi
Forend finish: Stainless steel. Case size: 68 x 109.6mm. Backset: 45mm. 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.