I just got the first part of my JABOD forge done, it went well but I realized something, the screws I used were galvanized and a few of them might come into contact with a bit of heat. At the closest point, there will be about 3 in. of sand, clay, and a 22 gauge steel sheet between the fire and the screw I think. From what I saw online fumes start to produce around 1000 F, considering this I don't expect that much heat will make its way to the screws, so it should be safe. Just to be sure, however, I am interested in the opinion of others that have a bit more knowledge on the subject. I couldn't find any clues on the JABOD thread, but perhaps I missed something. Thanks in advance.

Not a problem.