Corrosion Resistance in Galvanic Series Fasteners

If you have the presence of moisture, and actually oneer salt and law, that makes it even more critical. The worst metals to par ecause when i worked in huston, omen obviously it was like, always stainless steel ando aluminum for exterior conditions. But i knew that carbon steel and aluminum were two metals that you had to have some sort of washer or some sort of plastic between the two.