Re: [TowerTalk] Proper bolt sizes for Rohn 25G

[Mike <k4gmh@arrl.net>]

Hello,

Stainless steel bolts and nuts were used on my 130 ft 25 tower when 
Hurricane Isabel turned it into a pretzel (80 ft pine tree fell across a 
set of guys).  Some of the bolts bent, but none sheared.  The ones that 
bent had ripped the tower leg rather than break.  At 09:29 AM 1/19/05, you 
wrote:
> Rohn bolts for 25 are fine threaded and are grade 5.  However, they usually
> turn to rust in a short period of time.
>
> My advice for guys putting up short tower (40-50) is to pick up galvanized
> bolts at the local hardware store.
>
> I'm no engineer, but the downward force of 200 lb. of tower and some guy
> tension is not going to shear the bolts.  I've seen a fair amount 
> collapsed tower
> and have never seen any bolt shear.
>
> Bill K4XS
> _______________________________________________
>
> See: http://www.mscomputer.com  for "Self Supporting Towers", "Wireless 
> Weather Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with 
> any questions and ask for Sherman, W2FLA.
>
> _______________________________________________
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        73,
        Mike, K4GMH 


_______________________________________________

See: http://www.mscomputer.com  for "Self Supporting Towers", "Wireless Weather Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with any questions and ask for Sherman, W2FLA.

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