WTI Fasteners Databooks
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Thread repair kits

Repair stripped, worn, and damaged threads with ease.

Why use wire thread inserts for thread repair?

WTI's Thread Repair Kits

Our popular thread repair kits are widely available from stock in an extensive range of sizes and thread forms. We stock:

Supplied in sturdy boxes, all WTI thread insert kits come with an inserting tool, HSS wire insert tap, and some wire thread inserts. Smaller kit sizes also include a drill and manual tang break punch. Kits are supplied with free running 1.5D length inserts as standard, though different length and/or screw locking inserts can be included upon request.

We have four different types of thread repair kits available:

Screwdriver Kits

One of our most popular products, our single size screwdriver kits offer an economic and efficient solution for thread repair. All sizes include a plain mandrel screwdriver inserting tool, a HSS wire insert tap, and some free running wire thread inserts. Drills and manual tang break punches are included in kits up to M12 and 1/2".

Pre-wind Tool Kits

Our single size professional kits include a production type pre-wind inserting tool, a HSS wire insert tap, and a quantity of either free running or screw locking inserts. Drills and manual tang break punches are included in kits up to M12 and 1/2".

Sparking Plug Kits

Specifically designed for the repair of damaged spark plug threads, our spark plug thread repair kits come with a plain mandrel screwdriver inserting tool, a HSS pilot nose 2-stage reamer tap, and 10 free running wire inserts (1.5D length in sizes M10x1.00 and M12x1.25, and 3/4" length in size M14x1.25).

Workshop Range Kits

Available for ISO Metric, Unified and British Standard threads, each WTI workshop range kit covers a series of thread diameters.


Speak to our sales team today for a quote