THESE ARE VINTAGE HIGH QUALITY KNOBS FROM MILITARY HANGER SURPLUS. THESE HAVE NO SET SCREW. THEY WILL NEED TWO FOR TIGHTENING AGAINST THE SHAFT. THEY TAKE STANDARD 6MM SHAFT POTENTIOMETER OR ROTARY SWITCH.
KNOB DIMENSIONS:
TOP DIAMETER IS 44MM
LOWER PART DIAMETER IS 28MM
KNOB HEIGTH IS 23MM