[TowerTalk] Anchor Bolt Grade

[Mickey Baker]

you might want to reach out to your engineer or to US tower and to make
sure that the bolt torque specification doesn’t change.

“Ends and beginnings—there are no such things. There are only middles.”
Robert Frost


On Wed, Apr 22, 2026 at 9:30 AM Bob K6ZZ via TowerTalk <
towertalk at contesting.com> wrote:

> Hi Folks,
>
> Is there any downside to using anchor bolts with a tensile strength that
> exceeds the tower foundation design requirements?  All other specifications
> would be the same other than Grade.
>
> I am helping a friend reinstall a UST HDX-689. The foundation design
> specifies Grade A36 headed anchor bolts; however, the supplier can provide
> Grade A55 bolts for the same price with a faster delivery time.
>
> I assume this would not be an issue, but I wanted to verify before
> proceeding.
>
> Thanks,
>
> Bob K6ZZ
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