After spending all that time making panels for my car I didn't want to simply rivet them to the tubing. Not my style plus I didn't want all those holes in my chassis. So I spent an immense am out of time making little 1"x1" tabs with threaded holes to fix the panels to with screws. I haven't put the panels back on yet, but the tabs were tacked in place screwed to the panels so they do still fit,
there are over fifty of them welded to the back half of the chassis. I can't wait to do the rest of the chassis at least that will all be metal.
Patrick