The HVDHYY assortment of black bolts includes 945 pieces of bolts, nuts, and washers in sizes M2, M3, M4, and M5. It is made of high-quality alloy steel, ensuring corrosion resistance and durability. This kit is perfect for professionals, carpenters, enthusiasts, and rental companies, as well as for DIY construction maintenance. It comes in a transparent and reusable storage box for quick access and protection. Contact us for professional and satisfactory customer service!