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Re: [TowerTalk] LM-354 Tower Base Bolts

To: towertalk@contesting.com
Subject: Re: [TowerTalk] LM-354 Tower Base Bolts
From: KJ6Y@aol.com
Reply-to: "Tower and HF antenna construction topics." <towertalk@contesting.com>
Date: Fri, 26 Mar 2010 11:34:32 EDT
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
Ron,
Most cases they were A307 Grade 5 3/4" bolts.  In rare cases they used  
A325 High strength bolts.  They required being torqured to 350 ft/lbs. If  you 
have the engineering calcs, it should say in them.  If you go with the  
A325, they require a Registered Deputy Inspector watch you torque the bolts.  

Skip,  KJ6Y
_Communications Service  Co_ (http://www.communicationsserviceco.com/) 
22712 Califa St
Woodland Hills, CA 91367 
818-887-3569 
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