[TowerTalk] J bolts for TX455

k3fy at arrl.net k3fy at arrl.net
Mon May 19 15:55:35 EDT 2003

       Please be aware : Standard threaded rod available at the hardware
store is not the same grade as structural anchor bolts.   The minimum steel
used in anchor bolts meets ASTM A36, which specifies the minimum chemical
and physical properties.    Common threaded rod does not have these
requirement and is generally made from 1010 to 1018 steel.  It is definitely
a pig in the poke.   ALSO NEVER bend any threaded rod into U-bolts, J-bolts
or L-bolts.  Threads in the bend area will always be prone to fail.

    ...and yes this is my business, from 1/4" diameter up to 6" diameter we
make some of the biggest and strongest you'll ever see.

Mark K3FY


----- Original Message -----
From: <K7LXC at aol.com>
To: <thompson at mindspring.com>; <towertalk at contesting.com>
Sent: Monday, May 19, 2003 12:16 PM
Subject: Re: [TowerTalk] J bolts for TX455

> In a message dated 5/18/03 8:41:52 PM Pacific Daylight Time,
> thompson at mindspring.com writes:
> > I think you are talking about the bolts that hold the tower at the tilt
> >  points.  Mine were originally black steel but the bolts and base stay
> >  when you move the tower.  I have moved the tower three times and have
> >  1" galvanized universal bolt available at large hardware stores (they
> >  have to order for you) or McMaster-Carr.  They are 36" long plus a 6 "
> right
> >  angle bend (mine were L's not J's).  A foundry or perhaps a Northern
> >  outlet can put bends in the bolts for you.
>     Actually the all-thread that is available at any hardware store is the
> same grade as the anchor bolts.
>     US Tower doesn't supply J-bolts anymore; what you get are the anchor
> bolts with a nut welded on the bottom end. That's all you need - do that
> put two back-to-back or epoxy one on and you'll be all set.
> Cheers,
> Steve     K7LXC
> Professional tower services for commercial and amateur
> _______________________________________________
> 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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