Imagine you have a threaded (tapped) hole that is 1/4" deep with a 3/4"
stainless bolt. You will likely strip the threads out before you break
the bolt... Not make the hole 3" deep and fully threaded... The bolt
will snap if tightened too much before the sum "shear point" of the
threads is reached...

Bad form to reply to one's own post, but note that the 3" depth was supposed
to be 13" depth.... Even at 3", the threads might shear off before the bolt
broke - especially in aluminum.

Joe in Northern, NJ - V#8013-R

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