• Made with 304 stainless steel and high-quality nylon, these nuts offer corrosion resistance, are waterproof, and rust-resistant. • Includes 180 nuts in 7 different sizes: M3 (45 pieces), M4 (40 pieces), M5 (35 pieces), M6 (30 pieces), M8 (15 pieces), M10 (10 pieces), and M12 (5 pieces). • The nylon insert ensures a firm lock, preventing the nuts from loosening, and guarantees their durability and resistance to deformation. • The kit comes in a transparent and durable storage box, ideal for keeping the nuts organized and secure. • Versatile use in automobiles, construction machinery, shipbuilding, cabinets, textile machinery, and more. Perfect for the installation and fastening of furniture, engines, cars, and motorcycles. • Package dimensions: 10.2 cm wide, 2.5 cm high, and 15.2 cm long.