This flanged hex head bolt assortment series provides versatile fastening solutions for precision machinery, automotive repair, home appliances, and DIY projects. Each kit includes high-quality carbon steel bolts with a black zinc or black oxide finish, offering excellent corrosion resistance, mechanical strength, and long-lasting durability. The assortments cover commonly used metric sizes from M6 to M10, suitable for both small-scale and general-purpose applications.The 105-piece M8 set focuses on M8x1.25 bolts, ideal for precision machinery, home appliances, and DIY assembly. The 830-piece assortment includes M6, M8, and M10 bolts, along with matching nuts, providing a comprehensive solution for automotive, mechanical, and workshop projects. Each bolt features a flanged hex head design that ensures stable clamping, prevents loosening, and distributes load evenly for reliable performance.All components are organized in compartmentalized storage boxes for easy access and efficient workflow. The black zinc or black oxide coating enhances corrosion resistance, making the kits suitable for indoor and outdoor use. These flanged hex head bolt assortments are practical, durable, and ideal for professionals, hobbyists, and technicians who need well-organized hardware for frequent maintenance, assembly, and repair tasks.