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<p>To be clear, the screws I'm recommending are not a sheet metal
screws, they have 12-24 threads like large ground screws. It just
drills and taps in one shot. In 1/8" or thicker metal, it gets
the code required minimum 2-1/2 threads of contact. As I stated
in my first post, regular sheet metal screws won't work. <br>
</p>
<p>Ray Walters<br>
Remote Solar<br>
</p>
<div class="moz-cite-prefix">On 1/28/2025 5:50 PM, William Miller
via RE-wrenches wrote:<br>
</div>
<blockquote type="cite"
cite="mid:f088a2a3015dcfdc1b9d9a160e9f6ded@mail.gmail.com">
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<div class="WordSection1"><br>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Verdana","sans-serif";color:#1f497d">Practices:
</span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Verdana","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Verdana","sans-serif";color:#1f497d">I
would avoid the use of any kind of sheet metal screw. Those
are expressly prohibited in the Code. I would research
problems with dissimilar metals and find readily available
solutions for the problem. These is likely no problem one
of us can face that has not been faced before by someone,
somewhere. Find out what others have done.</span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Verdana","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Verdana","sans-serif";color:#1f497d">Once
you educate yourself you will then have the tools to modify
your approach, if needed, or to argue your case if you are
convinced your approach is correct.</span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Verdana","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Verdana","sans-serif";color:#1f497d">I
hope this helps.</span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Verdana","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Verdana","sans-serif";color:#1f497d">William
Miller</span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Verdana","sans-serif";color:#1f497d"> </span></p>
<div>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Arial","sans-serif";color:#1f497d">Miller
Solar</span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Arial","sans-serif";color:#1f497d">17395
Oak Road, Atascadero, CA 93422</span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Arial","sans-serif";color:#1f497d">805-438-5600</span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Arial","sans-serif";color:#1f497d"><a
href="http://www.millersolar.com/"
moz-do-not-send="true"><span style="color:blue">www.millersolar.com</span></a></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Arial","sans-serif";color:#1f497d">CA
Lic. 773985</span></p>
<p class="MsoNormal"><span style="color:#1f497d"> </span></p>
</div>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Verdana","sans-serif";color:#1f497d"> </span></p>
<div>
<div
style="border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">
RE-wrenches [mailto:<a
href="mailto:re-wrenches-bounces@lists.re-wrenches.org"
moz-do-not-send="true" class="moz-txt-link-freetext">re-wrenches-bounces@lists.re-wrenches.org</a>]
<b>On Behalf Of </b>Mark Frye via RE-wrenches<br>
<b>Sent:</b> Tuesday, January 28, 2025 12:33 PM<br>
<b>To:</b> RE-wrenches<br>
<b>Cc:</b> Mark Frye<br>
<b>Subject:</b> [RE-wrenches] Attaching Ground To Steel
Frame</span></p>
</div>
</div>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Folks,</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">I am going to have a steel frame for my
stand alone power supply to be dropped on the ground out in
the elements.</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">I was planning to weld a stainless bolt to
the mild steel frame to provide a corrosion resistant point of
connection.</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">I am getting a lot of push back on this.</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">What are other folks do to create a
connection for a system grounding electrode conductor on a
piece of equipment like this?</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Thanks,</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Mark Frye</p>
</div>
<br>
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