>>His point was that if it's
>>good enough to hold the adapter on (which holds the wire wheel on), why
>>shouldn't it be enough to hold the steel wheel as well.
>From mechanical engineering machine design texts, it is shown that in a bolt
and nut application, essentially the first three threads closest to the
clamped item take just about all the load with the 1st thread taking the
most, the 2nd somewhat less, and the 3rd even less. The rest of any threads
within the nut (or the item into which is threaded a screw) take very little
of the load. Thus, if you have enough threads to have the stud reach all the
way through the nut, you should be OK. However, another good design practice
is to allow for three complete threads protruding beyond the nut. This is to
reduce the stress concentration which is introduced by the threads and the
threaded joint. On the other hand, another design practice is to try to
ensure that thread engagement is at least 1.5 times the bolt diameter.
For what it's worth.
Roy
'60 TR3a TS63103LO (in restoration)
techman@metrolink.net
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