Re: a wood stripped threads solution ? Methyl methacrylate
With Amazon everything is available in the US. The next time I want to put a 4mm screw in an 8mm hole I'd try that, but that's not really "thread repair" either. Although I'm sure you could develop the right techniques needed to do thread repair with it. I didn't see anything water thin so you can build it up slowly, or medium viscosity to build faster, looks more like an epoxy viscosity, and with these small screws you can easily twist in half I'd be very careful with it.
I do see they use it in CA formulas to cut down on the brittleness, which is probably what's in this "Insta Cure" I use, and Stew Mac's "Hot Stuff", etc.
Additives and Speciality Formulas
In addition to stabilizers, cyanoacrylates may contain thickeners, colorants, tougheners and other property enhancing additives. Once cured, CA polymers are clear (unless coloured), hard thermoplastic resins with high tensile strengths. However, they tend to be somewhat brittle and typically have low to moderate peel and impact strengths. To reduce brittleness, fillers such as polymethyl methacrylate (PMMA) are sometimes incorporated into the formulas.
To increase the toughness, some manufacturers use various dissolved elastomeric materials. Known as rubber-modified products, these specialty formulas offer improved overall toughness. Recent advances have led to flexible 2-cyanoacrylate formulas, which remain somewhat flexible when cured.