Carbon Steel Material Waterproof ANSI ASME Black Rubber EPDM Bonded Sealing Washer for Roofing Screws

Carbon Steel Material Waterproof ANSI ASME Black Rubber EPDM Bonded Sealing Washer for Roofing Screws. Wide Material Range: Available in Carbon Steel, Q235, #45, and #60 with various hardness grades. Extensive Size Options: Sizes range from M3 to M60 to meet diverse mechanical and construction needs. Multiple Surface Treatments: Options include Zinc Plated, HDG, Dacromet, Geomet, and Nickel Plated for corrosion resistance. OEM/ODM Service: We welcome OEM and ODM orders with strong customization capabilities for drawings and parameters. International Standards: Products comply with DIN, ASTM, ANSI, JIS, ASME, and ISO standards for global quality assurance. Fast Delivery: 5-10 days for in-stock items; 30-45 days for production. Express shipping available for samples. Free Samples: Free standard and in-stock samples provided, though freight costs are borne by the buyer. High Production Capacity: Monthly output exceeds 500 tons, ensuring timely fulfillment of bulk orders.