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RE: Thread shear

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If Al Gore invented the internet, I suppose I can take credit for "Harold's
formula".  But Barrett is the real author.

When you get into the odd materials, rods which become bolts are
manufactured to different specs using different processes than plates and
bars which become washers and nuts.  The manufacturing processes are
different for various types of materials which depend on quenching,
tempering, annealing, etc.  The mechanical properties will also vary for
thickness' for a given ASTM material type (there are 3 different tensile
strengths for A449 depending on diameter).

Harold Sprague
The Neenan Company

-----Original Message-----
From: NRoselund(--nospam--at) [mailto:NRoselund(--nospam--at)]
Sent: Monday, May 10, 1999 5:26 PM
To: seaint(--nospam--at)
Subject: Re: Thread shear

I was glad to see Harold's formula.  That approach is needed because
rods and bolts of an unconventional material often don't come with nuts of 
matching material.  (Why is that?) 

Nels Roselund
Structural Engineer