• Made with high-quality stainless steel, resistant to corrosion and rust, ideal for use in harsh environments. • Includes hex nuts and washers for precise installation and greater load capacity. • Organized by size and quantity in a plastic mesh box for easy storage and transport. • Suitable for maintenance and repair in homes, workshops, garages, and more. • Contains 600 pieces in total: 20 pieces of each size M3 (8mm, 12mm, 16mm, 20mm), M4 (8mm, 12mm, 16mm, 20mm) and 10 pieces of each size M5 (8mm, 12mm, 16mm, 20mm), along with 80 nuts and washers M3, 80 nuts and washers M4, 40 nuts and washers M5. • Product dimensions: 10 cm wide, 2.3 cm high, 17.5 cm long.