Fred Hopengarten, K1VR
Six Willarch Road * Lincoln, MA 01773-5105 * 617/259-0088
Big antennas, high in the sky, are better than small ones, low.
On Tue, 17 Dec 1996 00:49:25 -0500 K7LXC@aol.com writes:
>In a message dated 96-12-16 23:35:05 EST, K1VR wrote:
>> A couple of tips:
>>1. Over order by 10%, to allow yourself to drop a few into the snow
>>still get the project done.
>>2. An additional part of that "over order" will be used up as some
>>"gall." There are compounds which limit galling, but you'll still
>>a few nuts and bolts.
>>3. Go back a month later and re-tighten the SS nuts and bolts. Some
>>will loosen up.
>4. Use SAE Grade 5, fine threaded bolts per Rohn spec.
>5. Use a never seize compound on the SS nut and bolt threads and
>very few galling and removal problems.
>6. I'd still use the Rohn hardware. Despite rusty outward
>threads of the hardware I've removed has been almost always in FB
> They're only $2.95 a set from you-know-who.
K1VR: I think this is a worthy thread.
A tip on acquiring "Never Seize": It is sold by John Deere
dealers throughout the U.S. and Canada, and perhaps around the world, in
a small can with screw top and a John Deere label.
A question: Does anyone have a theory as to why Rohn uses fine
thread on tower bolts?
A comment: When 1/4 or 5/16 inch SS galls, I've never had a
problem breaking the bolt.
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