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Pure aluminium washers will not prevent galvanic corrosion. Besides, covers are also made of aluminium, so what's the point? If allowed to eat away, galvanic corrosion will cover large chunks of the base metal.For washers to be effective, you need to coat them, thus eliminating the electrochemical potential differences. Same goes for the shank and threaded portion of the screw.- Knut
Pure aluminium washers will not prevent galvanic corrosion. Besides, covers are also made of aluminium, so what's the point? If allowed to eat away, galvanic corrosion will cover large chunks of the base metal.
For washers to be effective, you need to coat them, thus eliminating the electrochemical potential differences. Same goes for the shank and threaded portion of the screw.
- Knut
