[TowerTalk] RE Rohn's hardware de K0FF

[Stan or Patricia Griffiths]

You are right that all the sizes of tower larger than 25G use coarse threaded,
hot dip galvanized bolts and nuts but NO lock washers or PAL nuts.  Rohn does
supply PAL nuts for some applications, but not tower leg bolts.  I specfically
asked Rohn to tell me why they used fine threaded hardware on 25G and they could
not give me a reason . . .

Places Rohn supplies PAL nuts for include all the bolts used on the TB3 and TB4
thrust bearings.  I can't think of any others right off . . .

The last shipment I got from Rohn included a batch of AS25G rotator shelves that
were NOT hot dip galvanized ! !  I have not had a chance to ask for an
explanation yet . . .  they look like they have some sort of protective coating,
but definitely not hot dipped like the other ones I have received from them.
Some areas appear to have been PAINTED with a spray can . . . ! !  But it is a
lousey paint job at best.

Stan
w7ni@teleport.com

K0FF wrote:

> >This is why for example the tower bolts that Rohn supplies use a fine
> >threads and no locking hardware. >
> >Mike, W4EF........................................
> >
>
> Mike while that may be correct for the Rohn 25 only (I think.....don't use
> guyed towers here). All the larger sizes, 45 and up use hot-dipped grade 5
> NC (coarse) threads and are supplied with PAL nuts as locking hardware (a
> form of jam nut). It's the flat spring nut made from stamped sheet metal. It
> is screwed over the machine bolt to keep it from backing off. The BX series
> shows std. lockwashers under the nuts in their catalog.
> Commercial Microwave towers use 1/2 NC hot dipped w/ splitwasher.
>
> What's good for the goose.......
>
> Geo>K0FF
>
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