<h3>Key features</h3><ul> <li>GRADE 8.8 ALLOY STEEL MATERIAL:Metric Grade 8.8 Flange Hex Bolts and Flange Nuts are manufactured from high quality alloy steel with a zinc plated finish for corrosion, rust and durability to withstand harsh conditions.</li> <li>M4 M5 M6 M8 METRIC SIZES: This metric bolts and nuts kit includes 77 sets M4 bolts nuts washers assortment, 53 sets M5, 70 sets M6, 53 sets M8, totally 253 sets, 1012pcs.</li> <li>DURABLE COATING: With a trivalent chromium plating treatment for corrosion resistance and rust prevention, these bolts are suitable for indoor and outdoor use without compromising durability.</li> <li>ORGANIZED PACKAGING: Conveniently packaged in a transparent box with clear labeling, all nuts and bolts are neatly arranged for easy access and identification of sizes, enhancing user convenience.</li> <li>WIDE APPLICATIONS: The bolts kit are widely used in machinery, furniture, car and motorcycle repair and DIY design.</li> </ul><p>Free shipping included. 30-day hassle-free returns.</p>