20mm Plain to Screw Adapter Grey Lockring is included Other Sizes Availible PS20 – 20mm Plain to Screw Adapter Grey – 50 in BOX QTY PS25 – 25mm Plain to Screw Adapter Grey – 50 in BOX QTY PS32 – 32mm Plain to Screw Adapter Grey – 20 in BOX QTY PS40 – 40mm Plain … Continue reading 20mm Plain to Screw Adapter Grey