Seat belt bolts

I just wish I knew for sure, I would take 2 of each if they are available. I guess it's time for me to place a "wanted" ad. LOL
Double checked.
All 7/16-20 Fine threads. Ran them in all the way with a ratchet. Not sure what the coarse thread bolts are for.

C10, C11 and C10 stamped on the Heads of the bolts.

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Can find them used and new on EBay.

Vans Sells new sets for $75. Ouch! I'd just run 7/16 bolts with a bushing or piece of cut off pipe before I'd pay $75 for a set of ten bolts...
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