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Re: ASTM For Headed Anchor Bolts

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The ANSI requirements for threads are covered by reference from the F 1554. The A 36 references the A 307 where the reference is contained for the thread requirements of ANSI B 1.1 and B 18.2.1. So if you call out for A 36 or F 1554 all thread, they will default to the UNC thread requirements contained in ANSI B 1.1 and B 18.2.1.

Large rods have threads rolled, tooled or milled as opposed to cut on a threading machine. These bolts are cheaper if they are ordered in all thread, and the threads are generally rolled. If my design allows threads in the shaft, I will add a note that all thread may be used at contractor's option. Generally contractors will use all thread if it is allowed.

Harold Sprague

From: Markajohn(--nospam--at)
Reply-To: <seaint(--nospam--at)>
To: seaint(--nospam--at)
Subject: Re: ASTM For Headed Anchor Bolts
Date: Tue, 19 Oct 2004 16:09:07 EDT

Is there a spec. for all-thread?  A quick search didn't turn up anything.

Mark Johnson

In a message dated 10/19/04 11:32:13 AM Pacific Daylight Time,
spraguehope(--nospam--at) writes:
> They can also use all-thread for the
> bolt shaft.  It saves the threading process.

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