Tim H16 wrote:
Also SS rivets are better than screws.
I have been considering rivets, but the part was constructed with countersinks. I think the (stainless) flathead screw would be stronger on the plastic side, but weaker inside the frame. A rivet, it seems to me, would be stronger on the frame side, but weaker on the part side due to the missing material underneath the rivet flange.
If I'm thinking about it correctly, I can drill the tapped hole out to rivet size, but cannot do the reverse. Wish I knew the thickness of the aluminum crossbeam.
Thanks for the tip about the catalog page!