The 5 MM FLAT WASHER (400LB) from REX INTERNATIONAL USA INC is designed to distribute load and reduce friction in fastening applications. This flat washer has a diameter of 5mm and is rated for a load capacity of 400 pounds, making it suitable for heavy-duty use. Constructed from high-quality materials, it offers excellent resistance to corrosion and wear, ensuring durability in various environments. Ideal for use in automotive, construction, and industrial applications, this washer is essential for achieving secure and reliable connections.