There is a tool somewhat like a rivet tool (actually it is almost exactly lite a pop rivet tool) which takes a threaded insert. You place this insert into a proper sized hole and sqeeze the tool, which compressed/expands the threaded insert, locking it in place. These inserts are sized for American threads such as 8-32, 10-24, 1/4-20.
If the studs are available with the above sized threads this might work for you. I believe that the tool is called a "Rivenut"; I have seen then advertised in catalogs and on the shelves of the local OSH stores.
-Roger