May 23, 200619 yr what grade are the head bolts, and what type of steel? just your common steel, heat treated? Thanks, I tried searching, maybe I just missed it.
May 24, 200619 yr what grade are the head bolts, and what type of steel? just your common steel, heat treated? Thanks, I tried searching, maybe I just missed it. they're about grade 10, i hardness tested a couple (i was bored) and they're better than grade 8 but not as good as grade 12
May 24, 200619 yr they're about grade 10, i hardness tested a couple (i was bored) and they're better than grade 8 but not as good as grade 12 Is that the "metric" grading or the US "SAE" grading? (Probably not the right terms, but I am too tired to remember properly.) Our US "metric" 8.8 bolts are roughly equivalent to SAE grade 5.
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