I recently had to drill and epoxy-in 2 anchor bolts for my HDX-555. UST, via
Remi their engineer, recommended purchasing A36 or B7 spec, the latter being
stronger. Since A36 was the standard UST uses. I saw no need to spend more
for stronger anchor bolts.
73, Lou W0FK
On Wed, Apr 22, 2026 at 9:30?AM Bob K6ZZ via TowerTalk <
towertalk@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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