Quote Originally Posted by nn4jw View Post
I think I would drill counter sunk holes through the cross, back to front, drill and tap matching holes in the back of the metal, and use machine screws to attach the two pieces. I can't see how big the cross is, but I'm going to guess 8-24 screws would be sufficient. Just use an 8-24 bottom tap to thread it so that you don't have to drill too deep a blind hole in the metal part.
This is basically what I was going to suggest.