Tested to over 130,000 cycles this 57mm backset 5 lever high-security lock is suitable for internal or external residential doors that have a rebate.
Mortise Lock’s require installation inside the door,
Lead times listed under additional information
Available in Ten Finishes and Two Backsets
Diameter: Backsets available 46mm and 57mm
Finish: Polished Brass, Satin Brass, Antique Brass, Antique Copper, Matt Black, Chrome Plate, Satin Chrome, Rumbled Nickel, Polished Nickel, Satin Nickel