These M6 Rivet Nuts (also called threaded inserts or nutserts) are super handy for adding strong, load-bearing threads to thin materials like sheet metal, plastic, or wood. You drill a 9mm hole, insert the rivet nut, and use a special rivet nut tool to squash it from the backside – it expands and grips permanently, leaving perfect M6 internal threads. The knurled body helps prevent it from spinning during installation. Made from aluminium alloy, they're lightweight and corrosion-resistant. This pack contains 100 pieces. Essential for automotive projects, DIY metal fabrication, furniture building, or repairing enclosures where you can't access the back. A versatile fastener every workshop should have.