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Went to lowes and figured out it's M8-1.25x50. The guy I spoke to said the bolts he sold weren't heavy duty enough. He wasn't sure which grade I need because it was metric. Is class 10.9 strong enough? I found these on ebay and they seem a much better deal than the one bolt I found on bike bandit.
10 M8 - 1.25 x 50mm Hex Flange Bolts Large O.D. Class 10.9 Zinc IFI 536 : Amazon.com : Automotive
10 M8 - 1.25 x 50mm Hex Flange Bolts Large O.D. Class 10.9 Zinc IFI 536 : Amazon.com : Automotive