Wright Products Mortise Lever Lockset features a patented adjustable backset and built-in deadbolt. Install on mortise doors measuring 1-1/8 in. to 2 in. thick with ¾ in. to 1 in. backset. The door lever is non-handed for left or right-handed doors.. Built-in deadbolt enhances security for added safety. Patented adjustable backset offers versatile door installation. Non-handed lever accommodates left or right-handed doors. Commercial/Residential: Residential. Door Handing: Universal. Door Locks & Knobs Product Type: Latches. Finish: Matte Black. Finish Family: Matte Black. Hardware Color Family: Black. Included: Installation Instructions,Mounting Hardware. Interior/Exterior: Exterior. Latch Type: Surface mounted. Material: Nickel. Security/ANSI Grade: N/A. Tamper Resistant: No. Bore Hole Size (in.): 1.75 in