Thread Repair Kits 3221M12C M12 x 1.75mm Metric Thread Repair Kit

The Thread Repair Kits 3221M12C is a professional-grade metric thread repair kit designed to permanently restore stripped or damaged M12 x 1.75mm threads in a variety of materials. This complete kit provides everything needed to repair threads back to their original size—and even stronger than before.

Key Features:

• M12 x 1.75mm coarse metric thread size with 18.0mm insert length
• Helically coiled inserts made from 304 (18-8) stainless steel with diamond-shaped thread form
• Inserts expand with spring-like action to securely grip parent material walls
• Repairs stripped threads in aluminum, aluminum alloys, magnesium, steel, cast iron, and bronze
• Creates permanent threads with strength exceeding the original
• Requires 31/64" drill size for proper installation
• Made in USA

What's Included:

• 6 stainless steel thread inserts
• STI tap for thread preparation
• Installation tool for insert placement
• Detailed instructions for DIY-friendly installation

This kit allows even inexperienced users to permanently repair damaged threads by following the included step-by-step instructions. The Perma-Coil design ensures the repaired thread is stronger and more durable than the original, making it ideal for automotive, machinery, and equipment repair applications.