Crystal Octagon Amber Glass Door Knob - This stylish amber glass knob measures 2 3/8 inches in diameter (approximate) and has a projection of 2 1/4 inches. The solid brass rosette plate measure 2 1/2 inches in diameter with a screw spacing of 2 inches. Made for modern doors with a 2 1/8 inch bore hole. This door knob set is available in several finishes and functions. Passage (Hall/Closet) and Privacy (Bed/Bath) sets come complete with the functioning hardware and a 2 3/8 inch back-set is standard. A 2 3/4 inch back-set is also available upon request. This particular product has a lead time of approximately 3 to 5 business days.