Round Hole Washer designed for securing bolts and screws, ensuring a tight and reliable fit. Key specifications: Inside dimension of 10.50 mm (0.41 in), outside dimension of 20 mm (0.79 in), and thickness of 2 mm (0.08 in). Ideal for various applications requiring precise spacing and load distribution. Made from high quality general steel for durability and strength. Zinc finish provides excellent corrosion resistance and long-lasting performance.