These flat washers are designed for use in various construction and industrial applications. Made from low carbon steel, they provide excellent durability and resistance to rust and corrosion, thanks to their zinc plating. The washers are manufactured to USS (United States Standard) specifications, ensuring they meet the necessary standards for quality and performance. The CR+3 designation indicates a coating that enhances the corrosion resistance of the washers, making them ideal for use in environments where moisture and other corrosive elements are present.