Achieve robust, vibration-resistant connections with the MYWISH 105-Piece M8 x 1.25 Flanged Hex Head Bolt and Serrated Nut Kit. Crafted from high-strength Grade 10.9 Carbon Steel, these specialized fasteners offer superior durability, heat resistance, and reliable performance in demanding environments. Each bolt features an integrated flange for enhanced load distribution, while the matching serrated flange nuts create a powerful, self-locking grip to resist loosening from shock and vibration. This comprehensive kit includes popular M8 lengths (16mm, 20mm, 25mm, 30mm, 35mm), ensuring you have the right components for your needs. Ideal for securing exhaust systems, toilet flanges, machinery components, and various high-stress DIY projects, this assortment provides robust fastening solutions.