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<p>I would add to the push back of welding an SS bolt to mild
steel. Welding stainless takes special welding wire and shielding
gas, and is tricky. Even with the right welding setup, it probably
will not bond to the mild steel, and will just break off when you
try to put any torque on the bolt. <br>
</p>
<p>Better options would be to drill and tap a hole into the steel
(1/4-20 thread would be good) Or just drill a hole, and use star
washers with a bolt and nut to bite into metal. I would also use a
mechanical lug or even a small ground buss, so that you can
connect multiple ground wires to the connection point. A third
option which I use is a fine thread self tapping screw to mount
the lug or buss. I've put these into 3/8" thick steel poles.
Regular self tappers will not work, it needs to have the fine
thread like in the pic. They're hard to find, but a good bolt
supply should have them.<br>
</p>
<p><img
src="https://external-content.duckduckgo.com/iu/?u=https%3A%2F%2Ftse4.mm.bing.net%2Fth%3Fid%3DOIP.LHmIgHYQksW6dB9jbCCTQQHaHa%26pid%3DApi&f=1&ipt=1bd249d2a82572ca27323426c16514fc8c717e5ee190c73c9799b930f7ed7091&ipo=images"
alt="Hex Head Self Tapping Screws" width="239" height="195"></p>
<p>Ray Walters<br>
Remote Solar<br>
</p>
<div class="moz-cite-prefix">On 1/28/2025 1:32 PM, Mark Frye via
RE-wrenches wrote:<br>
</div>
<blockquote type="cite"
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<p class="MsoNormal">Folks,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></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.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></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.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I am getting a lot of push back on this.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></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?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Mark Frye<o:p></o:p></p>
</div>
<br>
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