Ultra Hardware Ultra Security Series Entry 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. Finish Polished Brass, Backset 2-3/8 In. or 2-3/4 In., Latch Adjustable Latch, Security Level Grade 3, Exterior Access Key, Interior Action Turn Button, Pkg Qty 1, Package Type Clamshell WARNING This product can expose you to chemicals including lead compounds and chromium hexavalent compounds which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warni