Help
I am trying to make up the turn buckles in Rorty's IRS design but I cannot find a source of M12 LH threaded bushing or taps any suggetsions. Outer diameter is not an issue so long as it is over 20mm.

Try TOY Trading in Droitwich.
It is a small engineer's merchants. They got me some LH M5 taps quickly.
The phone nmber is 01905 794979.

Regards,
Mal

I've got some M12 X 1.75 LH taps and a die you could borrow. But I would need them back within a week or two.
Let me know if interested and I'll post em to ya!

I'm sure Merlin Motorsport do LH thread bushing for rose joints as I would have thought any rod end joint supplier would also do.

make sure you get the right pitch.