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Posted by Peter S on August 28, 2000 at 12:56:37:

In Reply to: Re: Grade 8 vs. 10.9 shear strength posted by Peter S on August 28, 2000 at 01:28:34:

My friend (a mechanical Engineer) says the shear area of the bolt at the join should be unthreaded.
Peter S


Good question. Since the application is strictly shear related I suggest find more data. I'll also aska friend who's got some data books.

PS


Anybody out there tried using 5/16" diameter grade 8 bolts for the outsides of the rear half shafts (where they bolt to the spindles). A 5/16" diameter bolt fits great, they are cheap and readily available. Came with 8MM 10.9 grade bolts. My internet searching shows grade 8 and 10.9 to have practically identical tension load strength. No luck finding good shear strength data.





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