Quote:
Originally Posted by oldskewel
Probably class 10.9. The 0.9 vs. 0.8 means the yield stress is that amount (90% vs. 80%) of the ultimate tensile stress. So it's not just a little different. I'm sure 10.9 is what you got, since that is the higher strength standard. (8.8 is lower, 12.9 is higher still)
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You're probably right. I know I've matched the original ones in terms of grade.