Just wanted to clear up what is in a standard tower leg bolt kit from Rohn.
Six bolts
and six nuts. That is all. No washers and no PAL nuts. At least this is the
case for
20G, 25G, 45G, and 55G.
I can't imagine that you could squeeze a leg hard enough to create enough
friction to
take all the downward force, especially on the bottom section of a tall tower.
I have
to believe the bolts support a good deal of the downward force in shear. I do
believe
that squeezing the tower leg prevents the need for a lock washer, however. I
have
never heard of nuts falling off of tower leg bolts or a tower leg bolt actually
breaking and/or falling out.
Stan w7ni@teleport.com
Ron Youvan wrote:
> >
>
> Hi:<< For our tower applications, we're looking at resistance to shearing on
> the bolts. The need to achieve perfect torque values is not so
> necessary for this sort of application. >>
>
> I was taught the way the Rohn towers and the like, (sleeved leg)
>
> work is: The bolts don't support the weight of the tower, the bolt/nuts
> squeeze the
>
> sleeve onto the top of the leg of the section below it.
>
> Was I taught wrong?
>
> BTW Rohn sells bolt/washer/nut (I hope with PAL nuts) sets for each size of
>
> tower they make, about $3.10 (as I remember) for one section 6 of each)
>
> 73 (= Best Regards) de: Ron ka4inm@qsl.net
> VISIT my HAM WEB SITE at: http://www.qsl.net/ka4inm
> using LINUX here & loving it!
>
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