• Includes 820 pieces of screws, nuts, and washers in metric sizes M3, M4, M5, and M6. • Made of high-quality 304 stainless steel, offering high hardness and corrosion resistance. • Precision design with clear and firm threads, easy to embed and do not loosen easily. • Stored in a sturdy plastic box with separate compartments and labels for easy identification. • Ideal for furniture repairs, appliances, communication equipment, and assembly of automobiles or boats. • Product dimensions: 13 cm wide, 3.6 cm high, and 19 cm long.