M8773 BB Features • ANSI Grade 2 Enrance Handleset is forged solid brass with stylish design• Stainless steel mortise lock case provides highest level of key operated security and represent the industry standard of quality• Ideal for doors with thickness of 45-55mm and backset 70mm (2-3/4")• More than 800,000 times lifecycle tested.Patented Anti-panic FunctionThe latchbolt & deadbolt will retract simultaneously by turning the interior lever (patented).Available FinishesPhysical Vapor Deposition - PVDChrome Plated - CPSatin Nickel - SNDimension for Front Plate and Back Plate Diagram (mm)A-435, B-210, C-75, D-255,F-112, G-60-H-255, J-75 M8773 G1 M8773 H2 M8773 J1