Ultra Hardware Ultra Security Series Polished Brass Entry Door Knob

Ultra Hardware Ultra Security Series Entry Knob, Radius corner strike; Backset: Radius corner, adjustable latch 2-3/8" to 2-3/4"; Fits doors from 1-3/8" to 1-3/4" thick; Standard 2-1/8" installation hole; KW1 keyway; Rekeyable, 5-pin cylinder; Case (Master Pack)includes 6 different locks in two groups of three locks keyed alike.