Sorry Dave. I've got a lot of crap going on right now, other than the site.
On my fans, the mounts you see came as a kit with my fans. It's just flat pieces of metal. But they are made to fasten to the fans with little clip sort of things, which won't rub on the radiator. My fans stay put and don't move at all. They are right up against the radiator. There is nothing else besides what you see, the 4 metels pieces per fan. The way the pieces hook to the fans is what help hold them in place.
Here's the best pic I have of the way they mount.