This Cambridge 2-Way Latch Passage Yard Knob is finished in satin nickel and is best suited for bedrooms or Yards that do not lock. This knob fits the two most common backsets in the U.S. (2-3/4 inches and 2-3/8 inches). The 1/2 inches latch bolt is plated in nickel and does not budge once in place. This knob does not include keyed cylinders. Use this knob on standard 1-3/8 inches and 1-3/4 inches thick Yards. This product has a 1 inch by 2-1/4 inches radius corner faceplate. If you are preparing your Yard for installation, the cross bore should be 2-1/8 inches in diameter and the edge bore should be 1 inch in diameter. This product is ANSI Grade-3 certified and rated for residential security.