B-0303.. Very Small Turned Knob in Brass. 7/16″ Diameter. 5/16″ Projection. Knob includes a 8-32 machine screw and an adapter wood screw if needed. Sold by each, not pairs. Photos shows two knobs for purpose of display only. Knob finish can be turned into an antique brass finish with our darkening solution. Solution is sold separately.