John Deere 12H303 Lock Washer, 10-Pack is a high-quality lock washer designed to prevent the loosening of fasteners in a variety of applications. It features an outer diameter of 14.81 mm (0.58 in) and a nominal size of 7.94 mm (5/16 in), ensuring a secure fit and reliable performance. Constructed with a thickness of 1.98 mm (0.08 in), this washer durability and stability under pressure. Made from high-quality general steel, it provides enhanced strength and longevity. The zinc finish coating helps resist corrosion, extending the lifespan of the washer and maintaining its effectiveness over time. Model Number: 12H303