280-Piece Grade 10.9 Metric Flange Bolt & Nut Assortment (M6, M8, M10)

This 280-piece Grade 10.9 Metric Flange Bolt Assortment is a high-strength hardware solution engineered for demanding environments. Unlike standard fasteners, these bolts are crafted from 10.9 alloy steel, providing the necessary tensile strength for high-torque applications such as engine work, suspension repairs, and industrial machinery.

The integrated flange head features a serrated grip design that acts as a built-in washer, distributing pressure evenly and increasing the torque required for the bolt to loosen. This makes them the ideal choice for mounting components exposed to heavy vibrations and harsh operating conditions. Finished with a durable black galvanized coating, these bolts offer excellent resistance to corrosion while maintaining a professional appearance.

✨ Key Highlights

• Grade 10.9 Alloy Steel: Engineered for high-stress and high-torque environments where standard Class 8.8 bolts aren't enough.

• Vibration Resistant: The serrated flange head grips the mounting surface to prevent loosening during mechanical action.

• Black Galvanized Finish: Provides long-lasting protection against oxidation and wear, perfect for automotive and engineering projects.

• Fully Threaded Design: Ensures maximum grip and stability across a wide variety of assembly tasks.

• Workshop Ready: Comes in a rugged, reusable storage bin with a detailed size chart for quick identification.

📏 Technical Specifications

📦 Size Breakdown

This kit includes a balanced selection of the most common automotive and engineering sizes:

Pro Tip: When replacing bolts in critical areas like an engine or vehicle frame, always verify the grade. Replacing a 10.9 bolt with a lower grade can lead to hardware failure under pressure. This kit ensures you have the professional grade required for the job.