iamdub
Full Access Member
Ouch! Those look worse than mine!!.
I called the local GM dealership. The bolts are a discontinued item but they were nice enough to give me the size. M12 1.75x45. It didn't list fine or coarse threads but I am sure I can find something to replace it with. I wonder what bolt strength these are. The dealer parts department didn't know that either.
I appreciate the listing.
Pretty sure they're grade 10.9. I'd replace it with a standard hex head bolt with some anti-sieze in the threads and paint the end that protrudes under the vehicle. You'll probably never be removing them again, but just in case and while you're there...