Vibration damper screws are made of rubble and staniless steel screws, which could reduce vibration and knock sound of the worn parts. Matel to female vibration damper screws and female to female vibration damper screws are available. M3 - M12 vibration damper screws are our popular sizes,especially M3x8mm D8H8 V/V vibration damper screws and M3x8mm D8H8 V/D vibration damper screws. If you don`t see the screws you required in our catalog, please send us an RFQ with your specificationns. Any questions,please contact us freely.