Crafted with precision, the 1/2" x 1.375" OD Low Carbon Zinc Finish Steel USS General Purpose Flat Washer is an essential component for various fastening applications. Featuring a robust low carbon construction, this washer ensures durability and consistent performance. The zinc finish provides corrosion resistance, making it ideal for both indoor and outdoor use. With an item diameter of 0.562" and a thickness of .109", this washer fits seamlessly into a wide range of setups. Each pack contains 25 units, each boasting a sleek design that conforms to the Inch system of measurement. The Fastenal brand ensures a quality assurance check at every step, delivering a reliable solution for your engineering and manufacturing needs. Part # 1133012