Heavy Duty Mortise Lockset 2 3 4" Backset (Larger) US3 Polished Brass LH Door Locks & Sets 4 mm) Cylinder Key Controlled 4 mm) Cylinder Key Controlled Brass Dimple Cylinder Keyway Key Controlled Pick Resistant #06 Keyway Keys Includes 5 Dimple Keys & 1 Duplication Card Cams Includes 2 Cams AR Key Controlled AdamsRite Cam and ST Key Controlled Yale Standard Cam Finish 26D Satin Chrome Keying Keyed Alike Up To 12 KA 12 Warranty Limited Lifetime Mechanical Warranty Lock Function ANSI F75 Passage lock Handing Non Handed Door Thickness 1 5 8” to 1 7 8” Backset 2 3 4" (70 mm) standard Backset: 2 3 4" Backset Deadbolt by key outside