There are director's chairs where the back is attached with two bolts and pivots. Who in the USA sells them?
Answers:
Pay a visit to your neighborhood hardware store. If they don't have the piece in stock, they will be able to special order it. You cannot beat the experience of a seasoned hardware guy when it comes to finding this type of thing. It will help if you take either the chair or the part with you when you visit the store.
Good luck with your search.
Other answers:
hanks harware why?
hanks harware why?
Off the top of my head:
Dick Blick
L.L. Bean
Just guessing. Look up their websites.
You may try American Chair company and if they don't have them they can tell you where to find them.