Dowty 214 Pcs Bonded Seal Oil Washers Kit - 10 millimeters, Silver, Black\nProduct Details\n--\u3010High-Quality Materials\u3011: Composite sealing ring consists of two layers of rings inside and outside, the outer ring is made of high-quality carbon steel, zinc-plated surface,flat and smooth, high strength,heat-resistant,wear-resistant,the inner ring is made of rubber with outstanding sealing performance,high temperature resistance,anti-squeeze,high density,with a good tight type.\n--\u3010Kit Contains\u3011: The kit has 214pcs adhesive sealing oil washers, sizes include 20pcs M5, 60pcs M6, 40pcs M8, 20pcs M10, 20pcs M12, 15pcs M14, 15pcs M16, 6pcs M18, 6pcs M20, 6pcs M22, 6pcs M24, with many varieties of specifications, the quantity is enough to satisfy your various use needs!\n--\u3010Widely Used\u3011: Composite Hop Seals are used to seal screw heads and prevent leakage from hydraulic fittings, valve bodies and pipe connections. The elastic bushing formed by the composite washer .