Kelley:
First of all, don't drill any more holes in your tower. The damaged
hole will eventually weaken with rust, especially on the thin steel of an
HDBX tower. There are other, non-destructive ways to attach your ground
wires.
Try McMaster-Carr http://www.mcmaster.com/#cap-screws/=8h6qu6 for the
full threaded hardware you need. I can't imagine that full-thread 9/16 inch
bolts are unavailable to you.
If you are truly unsuccessful, you might try an electrical supplier
that carries Harger connectors. I used their 213-T
http://www.harger.com/products/grdcmp/mech/bc/bc.cfm connectors to connect
the #2 ground wires to my Trylon angle steel tower legs. Just be mindful
that they won't tighten too well on smaller gauges than #6 (#8 and above.)
73 de
Gene Smar AD3F
----- Original Message -----
From: "Kelley" <kshaddrick@jetup.net>
To: <TowerTalk@contesting.com>
Sent: Thursday, August 19, 2010 7:00 PM
Subject: [TowerTalk] Rohn HDBX Advice
>I just put up a Rohn 48' HDBX tower. Before I start putting up antennas,
> I want to add some more grounds to the tower. The current bolts that
> hold the tower to the base are not long enough to add another nut so I
> can attach the ground wire. I've been unable to find any longer bolts
> that will work as the unthreaded length of the longer bolts is to long,
> thus I hit the end of the thread before they are tight.
>
> My multiple part question is, does anyone know of a supplier of longer
> 9/16" bolts that are threaded their entire length? If not, does anyone
> know of some sort of clamp that would attach to the tower legs that I
> can attach ground wire to? Or, can one drill another hole in the legs to
> attach a ground wire without jeopardizing the integrity of the tower? Or ?
>
> Thanks,
>
> Kelley
>
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