Hitesh steel which are widely known for their high structural bolting strength, hardness and corrosion resistance. These are manufactured using quality raw material, which is procured from reliable vendors. These plain washers are widely demanded in various automobile, construction, electrical and engineering industries.hese products are available at market leading prices. Standard :astm asme sb 160 164 425 166 446 574 472 * grade : uns 2200 (nickel 200) uns 2201 (nickel 201), uns 4400 (monel 400), uns 8825 (inconel 825), uns 6600 (inconel 600) uns 6601 (inconel 601), uns 6625 (inconel 625), uns 10276 (hastelloy c 276), uns 8020 (alloy 20 20 cb 3).