Single Cylinder Keyed Entry: Single cylinder handlesets are keyed on the exterior with an associated thumbturn on the inside that unlocks the door. The exterior handle has a thumb plate and the interior handle features a lever or knob. Single cylinder locks are most commonly used to secure entrances to a residence or place of business. Features: Crafted from solid forged brass for lasting durability Easily installed with all necessary mounting hardware included Covered by a 5 year limited warrantyProduct Technologies: Solid Brass Construction: This product begins with raw bars of solid brass which are heated, and pounded into specially made dies—producing a stronger, more substantial product. The difference between lesser metals and heat forged brass is noticeable the minute you hold it in your hands—solid brass is heavier, smoother, and naturally resists corrosion. Specifications: Backset: 2-3/4" Cross Bore: 2-1/8" Edge Bore: 1" Door Thickness: 1-3/8" - 1-3/4" Handing: Right Latch Faceplate: Square Corner Material: Solid Brass Grip Center to Center: 8" Overall Height: 17" Handle Height: 8-1/2" Handle Projection: 2-3/8" Interior Lever Length: 4-9/16"