Penn-Elcom M1320K Brass Amplifier Knob Black
Penn-Elcom's M1320K brass amplifier knob with a black finish has a notched tip indicator. Used for amplifiers with grip screw fixing. Set screw for use with 1/4" diameter shaft potentiometers. Dimensions: 0.77" Dia. x 0.76" H (19.4 x 19.3 mm).