>>Before it goes back up I want to repair the splits and will surely use SS
>>fasteners. I will also utilize the 33+ at all the joints - excellent
>>suggestion by Tom (N4KG).
>
> ABSOLUTELY DO NOT USE STAINLESS STEEL BOLTS ON YOUR ALUMINUM SELF
> SUPPORTING TOWER!! You MUST use GRADE 8 steel bolts. The shearing
> stress on a self supporting tower is even greater than a guyed
tower.
Yep - as I pointed out about the cable clamps.
typical stainless steel 90,000 psi
Grade 5 SAE 120,000 psi
Grade 8 SAE 150,000 psi
The above info is from the Carroll Smith book.
There is ALOT more info about bolts that is worth knowing - go
buy the book.
--
George Fremin III
Austin, Texas C.K.U. "My theory is that if you can work everything
K5TR you can hear on 75, then obviously your're
512/416-7010 not hearing enough." -- John NT5C
geoiii@bga.com
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