Originally Posted by royboy334
As a former contractor, I would advice against countersinking screws in thing metal. Gorilla glue bonds materials that absorb moisture-that is what makes it work. A good construction adhesive like liquid nails for paneling or better yet an instant bonding adhesive would be your best bet.
The countersink would be in the wood. Screws go through the wood to anchor in the aluminum. Probably won't do that anyway. Some kind of adhesive.
Here is something interesting., When I pulled the wood panel I discovered what looks like a weak attempt at gluing the wood to the metal. See the glue line below. The photo doesn't quite show it but the glue is exactly where the metal frame was. It's a bad attempt but maybe the procedure is to glue then staple it so the glue could dry. Eventually it broke loose and then the brads came out as it moves around while bouncing down the road.
Right now I had to take a step back and am reinforcing the frame. it was anchored into the wall but all of those screws only hit very think wall board and have pulled loose. In one important area they missed a metal stud in the wall by 1/4 inch. It could have been so strong if it hit the stud. I am moving those anchors and when done will be much more solid. Then I work on the paneling.
Thank you all for help and advise.