[TowerTalk] Tower bolts

[Herschel Hall]

Have you tried McMaster Carr?
Herschel WA9KIA

On Tue, Apr 4, 2023 at 10:04 AM Kelly Taylor via TowerTalk <
towertalk at contesting.com> wrote:

> Howdy, Towertalkians,
>
> I’ve just been quoted a price of $700 for bolts for a 52-foot Delhi tower.
> (The kit is $187 ea., but the distributor is insisting on a minimum order
> of three.)
>
> This Delhi, as you may recall, is essentially the Rohn BX but with a
> continuous taper instead of swagging at the top of each section.
>
> The bolts are unique in that they have shoulders at the base of the thread
> instead of being threaded entirely to the head. The shoulder fits inside
> the upper bolt holes of the lower of two mating sections. Presumably, it’s
> to limit compression (spalling, perhaps?) of the mating pieces.
>
> I see DX Engineering has Rohn bolt kits for Rohn towers with the same
> shoulder construction. Any reason the correct sizes would not be
> interchangeable?
>
> I’ve checked with our local masters of fasteners… such bolt construction
> is apparently unique to those supplied by Wade (Delhi) and Rohn.
>
> Thanks for any comments. And please, I’m aware of the limitations of these
> towers.
>
> 73, kelly, ve4xt
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