On 1/17/2014 12:09 PM, Ralph Mowery wrote:

"Paul wrote in message
...
On 1/15/2014 4:55 PM, Ralph Mowery wrote:
While on the subject of tower bolts, why does Rohn 25g tower use two
differant size bolts on the legs ?

Obviously none of the respondents have had to mate two obstinate sections
of Rohn 25g together.

The smaller hole is for a drift to force the sections into alignment so
the larger bolt can be installed. Then you have an empty hole just right
for a smaller bolt. I suppose it adds a little strength to the joint, but
not much.

Paul, KD7HB

I have helped install a couple of towers and have done that, but did not
know that was the reason.

Have also used that Tower Jack to help out, but only knew about that in
the last 10 or 15 years.



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I built a jack a couple of years ago, but have not had a chance to use
it yet.

Paul