Originally Posted by
3alarmer
...I'd be very surprised if an auto parts place has the proper insert for bike pedals, which are kinda odd in threading.
The RH 9/16"x20 used to be a popular spark plug size. Some 30 years ago I was able to convince one of the makers to introduce a bike kit, which they did for me at reasonable quantities because they were already 1/2 way there with the automotive kit, and wire. All they neede to do was make the LH tap, and wind the spring backward. I bought these 25 kits per order for years, until a fer mergers and acquisitions made the a tiny division of a large company that couldn't be bothered with this nonsense.
However the kit is only part of the deal. Not that many home mechanics have a power drill that can handle 9/16" drills or reamers. Some of the "repair" kits use a tap with a reamer built in (the ones I sold) but others don't.
BTW- so the OP has an idea, what would this run at the kitchen?