Hummm, not sure about the plating thing. At the hardware store store where I buy my bolts and nuts, the 8.8 are plated (silver colour) and d 12.9 are black.
Actually, the idea of using stainless steel bolts was to avoid them to rust, so SeriesLandy is right to point out that the bolts I bought might rust, and I don't want that.
What do you think about this one? 12.9, allen head?
IMG_8120 par
Voucht71, sur Flickr
IMG_8119 par
Voucht71, sur Flickr
They are actually come covered with oil, they are very fat and oily, so I guess it for protecting them from rusting while stored, and that means that they are not plated and will rust on the car. Am I right?
So, I'll try to find plated 12.9 somewhere else, if you confirm that this one will rust. And if I can't, yes Paul, perhaps I'll accept your offer to post some to me

Thank you very much for that, we'll see if it is necessary..., that is very nice. I'll keep you updated.
The car is now stripped off, the chassis is bare again. Water and salt from the road when I drove to the inspection last week made terrible damages (rust everywhere

), and I'm now grinding the welds before I take the chassis to the sandblast and powder coating company, hopefully this week...