Thx for your comments. Perhaps I should expand a little....
There are 6 brackets each with 2 mounting holes. The M6 bolts will either be screw into rivnuts or into a spreader plate inside the van. The panel is 1.7m x 1m, so the weight/bracket(s) is evenly distributed. Also, as the panel is...
I would be grateful for some advice on how best to fix aluminium brackets (35mm x 100mm) to Promaster van. The brackets are used to support a large (25 kg) solar panel on the roof of the van. I am concerned about vibration, long term rubbing wear and electrolytic action of the dissimilar metals...