Product Description

This repair kit contains 50 carbon steel thread repair inserts in a convenient box. Sizes range from M3 to M12, covering most small to medium threaded holes you might need to fix.

Over time, threads in metal, plastic, or soft materials can strip, cross‑thread, or wear out. A damaged thread means screws won’t hold tightly. Instead of replacing the whole part, you can use these self‑tapping inserts to restore the original thread. They simply screw into the damaged hole using a standard tool, creating a brand‑new, strong thread ready for your bolt or screw.

The inserts are made of durable carbon steel, so they resist wear and hold up under regular use. They work well for car parts, machinery, household repairs, and DIY projects. The box keeps all 50 pieces organized by size, so you can quickly find the one you need.

Installation is straightforward. You drill out the damaged thread, screw in the insert with the included installation tool, and then break off the tang if needed. No special skills or expensive equipment are required.

This kit is a cost‑effective way to save parts that would otherwise be thrown away. Keep a box in your workshop or garage and be ready to fix stripped threads in minutes.

Please check the thread size you need before starting your repair. With this 50‑piece kit, you’ll have the right insert for many common jobs.