The LOCK WASHER INTERNAL ZINC 7/16" INTERNAL TOOTHED is engineered from hardened spring steel, featuring inwardly twisted prongs that enhance grip and stability. Its design allows for a finished appearance by concealing the teeth under the screw head, making it ideal for applications where aesthetics matter. This washer is perfect for securing fasteners in automotive and industrial settings, ensuring reliable performance and long-lasting durability. The zinc coating adds corrosion resistance, making it suitable for various environments.