Sure-Loc Hardware AR107 15 Arapaho Keyed Entry Knob, Satin Nickel Contemporary Series Adjustable 2-3/8 - 2-3/4 backset Entry Keyed Alike In Sets Of Four Sure-Lock Contemporary Series Fits Doors 1 3/8" to 1 3/4" thick Includes mounting hardware and instructions for easy installation Adjustable latches fit standard door preparations at 2 3/8 as well as 2 3/4 Inch