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RE: What Is The Material Spec For "Lag Screw"?

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Bill:

this may be a little simple-minded, but the last couple times I went to "Home
Depot" for stuff I noticed the lag bolts labeled "LAG BOLT A307 3/8" "

I can't help you with quality control, but that's the ASTM for which I've
always asked.

--- Bill Polhemus <bill(--nospam--at)polhemus.cc> wrote:
> > -----Original Message-----
> > From: CDaniels [mailto:ced(--nospam--at)larsondesigngroup.com]
> > Sent: Saturday, June 02, 2001 12:38 PM
> > To: 'seaint(--nospam--at)seaint.org'
> > Subject: RE: What Is The Material Spec For "Lag Screw"?
> >
> >
> > Check out footnote 2 at the bottom of the tables in chapter 9 of the 1997
> > NDS, Fyb=45 ksi for bolts 3/8" in diameter and larger.  Typically I spec.
> > A307 and everything I seen has been A307.  The NDS refers to ANSI/ASME
> > Standard B18.2.1-1981.  I don't have a copy of this.
> 
> But what about simple tensile force resistance?
> 
> This is an area I have no experience in, so I'm trying to learn. I
> appreciate the input.
> 
> William L. Polhemus, Jr., P.E.
> Polhemus Engineering Company
> Katy, Texas
> Phone 281-492-2251
> Fax 281-492-8203
> 
> 
> 
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