In that case Richard, why not just pick up a pair of "hardened" bolts from Ace Hardware and use? Just grab a manufacturers bolt from one of the other mains and use it along with it.
I'm actually not going this route, someone suggested to me. A MACHINE SHOP at that! Supposedly very reputable in my area too.
I was (and still may) replace all the main bolts. I'll pick up a couple new at the dealership at a minimum.
Thanks,
ftyler