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I am bolting homemade parts to my block and
wanted to know any rule of thumb for how deep a bolt has to be. does an
8mm bolt need 8mm of thread depth? a certain number of
threads? are socket head bolts as strong as hex, at least for the
intake/exhaust manifolds? when do I use lock washers? I
always wondered why Lycoming engine case halves never had lockwashers and
used std (not fine)threads.(at least mine came that way)
kevin n3773@comcast.net
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