Not saying Stuborn Dutchman is wrong but I currently (for the last 15 yrs) work in a plating shop as a electro-plater (the person doing the plating) and our racks are NOT made of the same S.S. that a run of mill bolt is made of. They are a higher grade. On some racks the point of contact (where the part is mounted) is made of titanium and the titanium is then attached to a copper bar, much like a buss bar (and then coated for protection), which in turn is the contact point that attaches to the cathode bar. The reason the hook that goes on the cathode bar is made of copper is there is much higher current draw through that contact point than the point a part is mounted. Put a part on a common S.S. hook and place the hook on a cathode bar drawing high Amps and in a few moments the S.S. hook is glowing cherry red. The high current draw I refer to is 3 volts drawing 100 amps, 5 volts drawing 200 amps, 8-9 volts drawing 700-800 amps. Some of the plating tanks I use can and will draw 1000 Amps. In a perfect world the entire rack would be made of copper for conductivity, however, the copper slowly dissolves when placed in some of the cleaning solutions such as hydrochloric acid and quickly/completely dissolves when placed in nitric acid. Copper will also ruin some of the other processing tank solutions. Copper is also too malleable to hold parts securely in place for plating.
Also think about how many starters you have seen where the battery cable is connected with a larger copper contact due to high Amp draw?
That said, and knowing generators produce much lower Amps, if I were you, I would either use steel (remember to protect it from corroding), or switch connector from other generator or leave as is and maybe not use headlights too much.
Norm
(Side note to Randy, sorry if punctuation is off but spell check only helps so much ~grinz~)
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Today's Featured Article - Third Brush Generators - by Chris Pratt. While I love straightening sheet metal, cleaning, and painting old tractors, I use every excuse to avoid working on the on the electrics. I find the whole process sheer mystery. I have picked up and attempted to read every auto and farm electrics book with no improvement in the situation. They all seem to start with a chapter entitled "Theory of Electricity". After a few paragraphs I usually close the book and go back to banging out dents. A good friend and I were recently discussing our tractor electrical systems when he stated "I figure it all comes back to applying Ohms Law". At this point
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