Andrew,
When all else fails, try McMaster-Carr.
They aren't cheap, but they have almost every that exists in western
technology.
site is
http://www.mcmaster.com/
search for eye nut and then go down list for types of SS.
They might have an eyebolt too, but I didn't check.


Andrew Butchart wrote:

I need a 9" long - 3/8" eyebolt, either with a shoulder, or with threads all
the way up. I could also use a bit of threaded rod and an eye nut if I
could find someone who actually sells the blasted things.

I would be able to go around the Toronto, Canada area looking for such a
thing or could use mail order.

Any thoughts?