PREMIUM GRADE 8.8 ALLOY STEEL: Crafted from high-quality alloy steel, this assortment offers exceptional corrosion resistance, excellent wear resistance, and impressive hardness to ensure long-lasting durability. COMPREHENSIVE METRIC SIZES: The FOLIV kit includes a diverse selection of 907 pieces, featuring 70 sets of M4, 46 sets of M5, 64 sets of M6, and 45 sets of M8 bolts and nuts, making it an ideal choice for various applications. USER-FRIENDLY ORGANIZATION: Each component is neatly organized in a robust transparent box, with clear labeling on the cover for easy identification. This thoughtful design prevents mix-ups and enhances efficiency during usage. In the event of shipping damage, we offer prompt box replacement. VERSATILE APPLICATIONS: This bolt and nut assortment is perfect for a wide range of uses, including machinery assembly, furniture construction, automotive repairs, motorcycle maintenance, and various DIY projects. ENVIRONMENTAL INITIATIVE: With each purchase, FOLIV contributes to the White Memorial Conservation Center Inc., supporting environmental education programs aimed at preserving our natural resources. Together, we can make a positive impact on our planet. 907-Piece Grade 8.8 Metric Bolt and Nut Assortment Kit, Yellow Zinc Plated, featuring sizes M4, M5, M6, and M8, with lengths ranging from 12-30mm, designed for both professional and DIY applications.