[TowerTalk] Rohn 25 Bolts Needed

Ethan ethan at ravenscall.net
Thu Feb 8 05:22:16 EST 2007

Cqtestk4xs at aol.com wrote:
> In a message dated 2/6/2007 9:49:33 A.M. Greenwich Standard Time,  
> ethan at ravenscall.net writes:
> Being  zinc plated rather than hot-dip 
> galvanized, these bolts will eventually  rust, but I've taken down towers 
> that had stood for decades and the rusted  bolts were still secure.
> Ethan KC8HES
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> A lot depends on where the tower is located.  In FL the bolts rust  within a 
> few years.  For the average guy with a 30-40 footer the shear  factor isn't 
> much of a problem.  I recommend stainless threaded, with a  preference for fine 
> threads.
> Bill KH7XS/K4XS
True, a lot depends on conditions.  And 25G less than 50 feet is very 
strong and can take a lot of punishment, even having joints not 
tightened correctly.  I have climbed towers with loose joints above a 
hundred feet, and it's rather unnerving!

As for stainless hardware, that's fine - as long as you know what you're 
doing.  Stainless uses a different strength grading system, and you need 
to use the right anti-seize compound if you want to be sure of taking 
the bolts loose again.

Ethan KC8HES

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