... 10years Product NameNickel hardware bolts and nuts screwMaterialsIron, aluminum, steel, copper, plastic, carbon steel, nylon, bronze, solder alloy, HSS, tool steels, or ... .DimensionsAccording to customer’s drawingSurface treatmentHeat treatment, Nickel, Zinc, Black Oxide, QPQ,electroplating, spraying, and painting and so on.PackingWooden box, or as ...