The Bolt-On Swivel Ball Link may be used with Airplanes or Cars. Features: The hex shaped shank helps the swivel arm thread on smoothly and hold tightly without additional hardware. The brass swivel allows the control arm to move freely through a wide range of motion. The socket screws and hex nut are zinc plated and hold tightly in place to provide a strong center pivot. Accept a 4-40 threaded rod.
