I think the small bolt on the 45G is the same as the larger bolt on the 25G.
I'll measure it when I get home (I have a 25G and a 45G tower). No washers.
Not needed. The bolts are in compression in their cross section. No real
axial load on the bolt I would guess. I doubt there is much vibration in
most installations that might warrant the washers.
73, Larry W6NWS
-----Original Message-----
From: Mike Ryan
Sent: Wednesday, May 07, 2014 7:41 AM
To: towertalk@contesting.com
Subject: Re: [TowerTalk] ROHN TOWER BOLTS
Larry is correct in that both the 25 and 45 use different size bolts and if
my memory serves me, this would be 4 different sizes in the case of these
two tower types. I have never seen washers used with these. It is
noteworthy, that should you be putting tower sections up, to be ABSOLUTELY
sure that the legs are clear inside. Run a garden hose through the leg to be
sure there is no blockage, or even push a ground rod through each one for
example. I can't tell you how many times I have found blockage in the
legs...dirt, mud, bugs, etc. And while on the subject, occasionally found
that the blockage was TOWER BOLTS that were packed in the legs by the
manufacturer which had never been found/removed. -Mike
-----Original Message-----
From: Larry
Sent: Wednesday, May 07, 2014 5:47 AM
To: towertalk@contesting.com
Subject: Re: [TowerTalk] ROHN TOWER BOLTS
25G and 45G use two different sizes at each joint on each leg. I forget what
size they are offhand. DX Engineering sells leg bolts and their web site may
tell you what the sizes are or the perhaps the Rohn web site.
73, Larry W6NWS
-----Original Message-----
From: Cal Zethmayr
Sent: Wednesday, May 07, 2014 12:02 AM
To: towertalk@contesting.com
Subject: [TowerTalk] ROHN TOWER BOLTS
There is quite a debate at one of our local Saturday morning breakfasts
gabfests about Rohn Tower Bolts.
Some say that Rohn uses two different size bolt sets for each tower section.
Some say that Rohn uses only one size bolt-washer-nut sets for all towers.
So what are the facts?
Are there different size bolt sets for Rohn towers, and are they different
depending on the tower ? 25G, 45G and 55G?
Cal Z
W4GMH in Crestview, FL.
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