I did the Oz/BB conversion on one of my spare sets of Korkers. They are a terrific alternative.
I ordered everything through jamestowndistributors
Here's what I ordered-excessive-YES-but I have my own stock to exhaust now
200 Mach Screw Pan Head Phillips S/S 10-24 X 3/4 in.
200 Lock Nut S/S 10-24 Nylon
400 Flat Washer S/S #10
Good luck,
Mike L.