with RCAL Latch and Round Corner Strike in Antique BrassTylo KnobFeaturing SmartKeyGreat hardware can transform the look of your home. With a variety of styles, functions and finishes, Kwikset's knobs are sure to define your decor from the moment someone walks into your home.Features:<ul><li>Features SmartKey Re-key Technologywith BumpGuard Protection</li><li>ANSI/BHMA Grade 3 Certified Quality &amp; Security</li></ul>Specifications: Door Prep:<ul><li>Cross Bore 2-1/8.</li><li>Edge Bore 1.</li></ul> Backset:<ul><li>Adjustable 2-3/8 or 2-3/4.</li></ul> Door Thickness:<ul><li>1-3/8 to 1-3/4 standard, 2 1/4 doors optional on 200 and 400 functions only</li></ul> Cylinder:<ul><li>SmartKey or Traditional 5-pin Pin &amp; Tumbler</li></ul> Faceplates:<ul><li>1 x 2-1/4 Specify round corner or square corner. Also available as drive-in latch.</li></ul> Strikes:<ul><li>2-1/4 full lip. Specify round corner or square corner. Other options available.</li></ul> Bolt:<ul><li>1/2 throw.</li></ul> Door Handing:<ul><li>Reversible for right or left hand doors.</li></ul> ANSI/BHMA:<ul><li>A156.2 Grade</li><li>all functions except 488</li></ul>Functions: 200 Passage/Hall/Closet:<ul><li>Both knobs always free.</li></ul> 300 Privacy/Bed/Bath:<ul><li>Both knobs locked or unlocked by turnbutton inside. Unlocked by emergency key outside</li></ul> 400 Keyed Entry:<ul><li>Both knobs locked or unlocked by key outside or turnbutton inside.</li></ul> 401 Keyed Entry, Free Interior:<ul><li>Outside locked or unlocked by key outside or turn button inside. Inside always free.</li></ul> 488 Half Dummy Trim, Surface Mounted:<ul><li>For doors where only a pull is required. No operation.</li></ul>Finishes:<ul><li>Polished Brass - 3</li><li>Antique Brass - 5</li><li>Satin Nickel - 15</li><li>Polished Chrome - 26</li><li>Satin Chrome - 26D</li></ul>This product contains 1 cylinders per lock and is typically keyed alike in quantities of 3.