I'm not exactly sure but it was enough to go threw just about exactly length of the fiberglass, holds it down nice and secure. We did have to use washers in a few areas on both because of the curve in the hood, it wasn't 100% completely flat where we put them, it was about the only place they fit nicely.
I honestly wish openings were bigger but it will have to do.
Oh and the door, my dad picked it up from work, im not exactly sure what it was used for but im sure you could find something like it at a home depot or get creative and make your own.
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Inferno Package/CAI/180tstat/3" DP/AL 104 XP's/3.8 MPS/Tuned