• Hexagonal nuts made of high-quality carbon steel, resistant to corrosion, scratches, and rust • High strength and hardness, do not break or deform easily, ensuring durability and stability • Provide a firm hold and prevent bolts from loosening, helping to maintain safety in joints • Suitable for general fastening applications, replace damaged or missing nuts • Used in combination with bolts or screws for secure fastening • Applicable in precision machinery, household appliances, sorting instruments, communication products, electronic products, and automotive repair • Includes 260 pieces: 200 of M5, 40 of M6, and 20 of M8, covering various usage needs • Ideal for professionals, DIY enthusiasts, carpenters, homeowners, and maintenance workers • An essential hardware for home or work in multiple fields