Stainless steel bolts and nuts as well as Ss flat washers where the dissimilar metals meet to keep them separated works OK.
Sincerely, Glenn Burt Sent from my 'smart' phone so please excuse grammar and typos. -----Original Message----- From: "RM You" <solarea...@solareagle.com> Sent: 5/28/2015 22:21 To: "RE-wrenches" <re-wrenches@lists.re-wrenches.org> Subject: [RE-wrenches] iron & aluminum Hi Wrenches, I have had a couple of customers want to fabricate their own PV pole mounts and racks out of iron. Aside from the galvanic corrosion and weight issues is there anything else I should caution these guys about? Any stories about failures etc? My druthers are to stay with the engineered aluminum pole mounts but when you’re dealing with someone with fabrication experience and the cost for pre-fab is high then the obvious outcome occurs. If the unit is properly treated/painted I imagine it could last many years. Is there a way to attach an anode to such a rack or would simple non conductive insulation between panels and rack be the best answer? Ron Young _______________________________________________ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
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