The 1 3/8 USS Flat Washer Zinc is a versatile and durable washer designed for use in a wide range of applications. Made from high-quality zinc-plated steel, this washer provides excellent corrosion resistance and durability. Its 1 3/8 outer diameter and 3/8 inner diameter make it suitable for use with 3/8 bolts or screws. The flat design of this washer helps to distribute the load evenly, preventing damage to the surface of the material being fastened. Whether youre working on a construction project, automotive repair, or any other applicat