I was hoping for some good old USA bolts being it is a Fel-Pro product, but all it is, is cheap Tiwan Bolts. Out of 8, I had one that was bent and wobbled in the hole when screwing it in and couldn't use it, or rather wouldn't use it because I figured it was tweaked and may cause problems down the road. Another one was hard to screw in the hole so I didn't force it because I didn't want the threads messed up. Ended up using 2 from a set of Koren head bolts I already had on hand to finish the job. Will not be buying any of these again in the future.