[MOTORHEAD]

My kirkham's tranny cover was pop riveted as per original. I will be replacing pop rivets with machine screws and "clip nuts" where I want easily removable panels. "Clip nuts" are nuts retained in a "U" shaped clip that slide over the edge of a piece of sheet metal, that has a hole near the edge. (the old rivet hole, drilled out to match the size of the screw to be used, #6,8,10/32) These are commonly used in light acft for removeable panels. It can end up being a lot of screws, but use a screw gun (bat pwrd drill) and it's no problem. If you damage the nut, it's easily replaced, as opposed to "riv-nuts" .