Properties: - Our hexagon head bolt and nut set is made of high quality carbon steel, strong and durable. - The machine screw assortment is smooth, sharpand precise, not easy to deform and not easy to slip in the working process. - The hexagon head bolts and nuts set comes with a plastic storage box for storage, which isalso convenient to collect your small accessories. - You will receive 500 pieces m3, m4, m5 bolts and nuts, which is enough for your daily use. - Suitable for furniture and ship repair, boat buildingmachinery, vehicle manufacturing and construction, etc. Product information: - Product name: Bolt and nut assortment - Material: carbon steel - Color: Black - Size: M3/M4/M5 - Quantity: 500 pieces Scope of delivery: M3*8 - 30 pieces M3*12 - 30 pieces M3*16 - 30 pieces M3*20 - 30 pieces M3 nuts - 120 pieces M4*8 - 20 pieces M4*12 - 20 pieces M4*16 - 20 pieces M4*20 - 20 pieces M4 nuts - 80 pieces M5*8 - 15 pieces M5*12 - 15 pieces M5*16- 10pcs M5*20 - 10pcs M5 Nuts - 50pcs Warm Tips: - Please check the size carefully before purchasing, thank you. - TheProducts contain small parts, keep out of reach of children to avoid accidental ingestion. - If you have any questions about the use of our bolts and nuts, please do not hesitate to contact us.We will definitely offer you a satisfactory solution.