WA-2300A

WA-2300A: Premium Round Phenolic Instrument Control Knob, molded from high-impact black thermoset phenolic resin. It features an integrated internal brass bushing layout calibrated for standard 1/4-inch (6.35mm) smooth or flatted control shafts, complete with dual heavy-duty head headless set-screws to provide unyielding mechanical friction grip and torque transfer loops, housed in a standard circular fluted outer profile.