M11x1.25×28.2 Metric Thread Repair Kit | 10 Stainless Steel Helical Inserts
Restore stripped or damaged M11x1.25 threads to factory-fresh strength with our professional-grade thread repair kit. This essential set includes 10 high-quality stainless steel helical inserts (also known as wire thread inserts or Heli-Coil inserts), designed for a permanent, wear-resistant repair in softer base materials like aluminum, magnesium, or plastic. Each insert measures 28.2mm in length, providing ample engagement for robust, reliable fastening.
Our inserts are crafted from 18-8 stainless steel, offering excellent corrosion resistance and superior tensile strength compared to the original parent material. The installation is straightforward: simply drill out the damaged threads with the specified drill size, tap with the included special tap (M11x1.25 STI tap required, often sold separately—please verify your tools), and wind the coiled insert into place using a standard insertion tool. The result is a durable internal thread that protects against future wear, galvanic corrosion, and seizing.
Ideal for mechanics, machinists, and DIY enthusiasts, this kit is perfect for repairing critical components in automotive engines (like spark plug ports or manifold bolts), motorcycle frames, industrial machinery, and aerospace applications. The repair creates threads that are often stronger than the original, allowing you to use standard M11x1.25 bolts. Save costly parts from replacement and extend the life of your equipment with this reliable, professional thread repair solution. Kit includes 10 inserts for multiple repairs. Always ensure compatibility with your specific thread pitch (1.25mm) and application requirements before purchase.
