Having some unthreaded body (not full threads) is typical with A325
structural bolts.
John KK9A
Kelly Taylor ve4xt 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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