[TowerTalk] Stainless Bolts and Nuts on Tower

[Bob Perring]

At 22:36 11/10/99 , Stan or Patricia Griffiths wrote:
>  I have to believe the bolts support a good deal of the downward 
> force in shear.
===========================>
Upward force, as well.

>  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.
==============================>
Good grief, no need to ever tighten the hardware so much that the tubes 
are deformed. If you do, you have probably exceeded the allowable 
percentage of yield values on the bolts.
Additionally, the flat washer additions and lock washer additions are 
not necessary unless you want to tighten all hardware to proper bolting 
torque values, and if you want to minimize any possibility of harm to 
the galvanized tower surface.
Regardless of how it is done, I agree that it is hard to imagine a bolt 
breaking from shear, or a nut coming off in a tower leg bolt application.

N5RP


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