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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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        <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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