USS ENGINEERED: The steel washers are designed for use specifically with USS threaded bolts INCREASES FASTENER SECURITY: Flat washers are used to increase the pressure a bolt or screw provides in material RUST-RESISTANT FINISH: Hot-dipped galvanized finish offers best-in-class protection against rust PART OF A COMPLETE FASTENING SOLUTION: Prevents a nut, bolt, or screw of the same finish and size from pulling through material

Product Description Hot dipped galvanized. Suitable for use in treated lumber. From the Manufacturer Used in applications with nuts and bolts. The flat washer provides a greater bearing surface which helps prevent a nut or bolt head from tearing through the material. Flat washers are commonly used in decks and fence building. The called out size is the inner diameter of the washer.