all i can tell ya is that the standard bolt for any strucutre is an A325
structural bolt and it says A325 on the head of the bolt
----- Original Message -----
From: "Eric Rosenberg" <wd3q@erols.com>
To: <towertalk@contesting.com>
Sent: Tuesday, June 11, 2002 12:06 AM
Subject: [Towertalk] Coding on Bolt Heads?
> I'm looking for information that will help me decode the letter codes
> printed on large (and small) bolt heads.
>
> I found a reference to a site here on Towertalk from 1997, but that
> site is long gone.
>
> Can anyone help?
>
> Thanks, in advnace,
>
> Eric W3DQ
> Washington, DC
>
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