econrad wrote:
> My initial concern was the fine thread, and its holding power.
> Well, I recalled a comment my old high school physics teacher had once said:
> it's not necessarily the depth of the threads, but the number of threads
> holding the object. Well, I'm here to say that those four 5/16" fine thread
> bolts hold just fine.
Eric and others,
Generally, fine threads are stronger than coarse threads. Because of the
shallow 'ramp' they can handle more torque than a same size coarse thread.
However, do not use fine threads in soft metals such as aluminum. There you'll
want to use a coarse thread.
Regards,
Brian Schlorff '61 TR-4 '64 TR-4 '72 TR-6 '79 Spit
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