Sure-Loc Hardware Round Bergen Knob & Deadbolt Combo, Satin Stainless Satin Stainless finish Used on exterior doors Adjustable 2 3/8"-2 3/4" backset Fits doors 1 3/8"-1 3/4" thick Used on exterior doors Adjustable 2 3/8"-2 3/4" backset Fits doors 1 3/8"-1 3/4" thick Bergen;Modern;door knob;knob;doorknob;nickel;silver