Wall Hung Problem

I am remodling a ranch with an old AS wall hung toilet.

The GC pulled it off the wall when I wasn't there and threw it away, along with the 4 Chrome mounting nuts.

Does anyone have any suggestions for new ones. The carrier is at least 40 years old.

The bolts must be at least 7/8 - 1" and I'm not sure of the thread count.

A new carrier is out of the question.

nuts

The bolts are standard 5/8" coarse thread. If you do not care about the looks you can use regular steel nuts. The regular acorn nuts are available from any carrier manufacturer, J R Smith, Zurn, Josam, Wade, etc.