




The SENNMONN M11x1.5 Thread Repair Kit restores stripped or damaged M11x1.5 threads using ten solid stainless-steel inserts plus HSS drill, tap, counterbore and installation driver in a compact EVA case.
If a bolt or stud no longer engages properly, this kit gives you a durable replacement thread rather than replacing the entire part. The set combines the cutting tools required to prepare the hole with solid-thread stainless inserts that produce stronger internal threads than standard coil-style repair inserts. Everything packs into a custom foam EVA box so the tools stay organized and transportable.
First you drill out the damaged thread to the correct oversize using the included HSS drill, then counterbore to accept the insert flange. Tap the drilled hole with the supplied HSS tap to create the new internal profile, and thread in a solid stainless-steel insert with the installation driver. The insert provides a full-diameter, corrosion-resistant bearing surface for the bolt.
The kit contains one drill, one counterbore, one tap, one installation driver and ten M11x1.5x30mm solid stainless-steel inserts. All components are housed in a custom EVA box with cutouts to keep pieces secure, reducing the chance of lost tools and making it easy to carry between job sites or store in a workshop.
Solid stainless inserts provide a larger contact area and a continuous metal body, which increases the strength and longevity of the repaired thread. They resist corrosion and hold preload more consistently, making them a strong choice for automotive and mechanical assemblies where reliability matters.
Use appropriate cutting fluid and steady, controlled speeds when drilling and tapping to extend tool life and ensure clean threads. Verify the drill and tap alignment before cutting; seat the insert fully in the counterbored recess and torque the fastener to the correct specification. Wear eye protection and follow common-sense workshop safety practices.
Who is this for: The SENNMONN M11x1.5 Thread Repair Kit is aimed at mechanics, automotive hobbyists, maintenance technicians and DIYers who need a durable, professional-grade solution to restore M11x1.5 threads. It’s especially useful for engine components, gearbox housings, suspension mounts and any application where a long-lasting metal thread is required and replacing the base part would be costly.
Q: Can these inserts handle engine bolt loads?
A: Yes — solid stainless-steel inserts provide higher shear and pull-out resistance than coil inserts, suitable for many engine and high-stress applications when installed correctly.
Q: Do I need special drills or taps beyond what's included?
A: No — the kit supplies the matched HSS drill, counterbore and tap sized specifically for the M11x1.5 inserts.
Free shipping across Canada on every order, with no minimum. Orders are processed within 1 business day and standard delivery across Canada usually takes 2 to 5 business days after processing, with tracking by email. See the shipping policy.
Free 30-day returns. You have 30 days from delivery to start a return. Return shipping is free: email us your order number and we send a prepaid label. See the return & refund policy.
Not sure it fits? Email northtrailauto@gmail.com with your year, make, model and engine and we reply within 1 business day.












