1 Pack Satin Nickel Passage Square Plate Door Lever Handle Knob (Hall and Closet) 8048DC ANSI/BHMA A156.2-2003 Standard Residential Grade 3. All metal construction. Passage door levers fit both handed door. Fits doors 1 3/8" - 1 3/4 (35mm - 45mm) thick. Adjustable backset 2 3/4" (70mm) or 2 3/8" (60mm). Fits standard 2 1/8" (54mm) installation hole. Instructions for door preparation and installation included. Mounting hardware, screws, and latch included.