Re: just curious. anybody know ......


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Posted by Kaegi [98.247.164.246] on Tuesday, January 14, 2014 at 13:11:20 :

In Reply to: just curious. anybody know ...... posted by mclark [70.197.71.244] on Tuesday, January 14, 2014 at 08:38:50 :

always go at least grade 5 on any automotive application. The modern grading system didnt exist back then I am pretty sure. I have looked into it and could not find a beginngin date it appears to be a fairly recent system. Either way factory bolts still are generally not marked, for many years now federal law says all autmotive fasteners must be at least grade 5. that is why auto parts stores only carry 5 and 8. I try to re-use the factory botls if there good but have used grade 5 on winch botls and heavily used the winch without any issues.



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