I had been calling these 6d nails based on the fact that they did not meet what I normally would consider the length of an 8d nail but I have been seeing them in homes that had been renailed according to code requirements. Which requires 8d nails.
I have seen them also where they are sticking out the side of the truss but chose this photo because it showed the whole nail so I do not think they are all overdriven that much into the OSB.
It kept bugging me because the nail is obviously longer than a 6d nail. I finally found this on a page from one of the jurisdictions in Florida and it describes an 8d nail as being only 2 1/4" long. (I know it is not related to wind mitigation inspections but is related to roofing in general). See http://www.palmettobay-fl.gov/pdfs/Roof%20Mitigation%20Form.pdf.
This made me rethink things and I am leaning toward calling these 8d nails. I just wanted other opinions to see if I was looking at thing correctly. I want to make sure I am doing the inspections correctly and at the same time, I want to make sure I give credits where they are due.