Katara LeverSignature SeriesGreat hardware can transform the look of your home. With a variety of styles functions and finishes, Kwikset's levers are sure to define your decor from the moment someone walks into your home.Specifications: Door Prep:Cross Bore 2-1/8"Edge Bore 1"Edge Bore 1" Backset:Adjustable 2-3/8" or 2-3/4" Door Thickness:1-3/8" ? 1-3/4" doors standard2-1/4" doors optional on 720 and 740 models Cylinder:SmartKey Security or Pin & Tumbler Rose:Specify round or square rose - HFL, LSL, MRL, SYL, MIL, VDL Faceplate:1" x 2-1/4"Specify round corner, square corner or drive-in Strikes:2-1/4" full lip. Specificy round corner or square cornerOther options available Bolt:1/2" throw Door Handing:Specify handing only with inactive levers ANSI/BHMA:Grade 2 Certified ADA:Families of MRL, SYL, LSL, MIL, HFL in Functions Passage, Privacy and Entry are in compliance with the American National Standards Institute (ANSI A117.1) and the Americans with Disabilities Act (ADA). UL:Meets UL 3 hour fire rating for 725, 735, 745, 746, 749, 755Optional UL* 1/3 hour fire rating for all functionsFunctions: Privacy/Bed/Bath:Both levers locked or unlocked by turn button inside. Outside lever unlocked by emergency key. Passage/Hall/Closet:Both levers always free. Keyed Entry Lever:Both levers locked or unlocked by key outside or turn or push button inside. Half Dummy Trim, Surface Mounted:For doors where only a pull is required. No operation.Finishes:Satin NickelSatin ChromePolished ChromeVenetian Bronze