[weq92f]

OK, well, I got the bolt: SAE 1/2-20 about 2 inches long.

It bolts into the old radiator just like the brass fitting.

However, it does not bolt correctly into either radiator bung on the new aluminum rad. It'll bolt into there but it's loosey goosey like I can wiggle the bolt around. Just like the brass fitting feels bolted in there.

This is not 1/2-20 threads.

So now I'm going to have to go back to the manufacturer and have them either identify what I have thread wise so I can make it work OR send me a new radiator that is correct.

Any ideas what thread this might be?

-klb