5th January 2020, 10:05 PM
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Senior Member
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Join Date: Jan 2014
Location: Belgrave, Australia
Posts: 803
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I do like the idea of using A6 hardware. Most Audi front suspension is similar enough to get away with that. The D2 only has 1 arm that is different in the way it mounts to a C5.
The green is referring to that greeny/bluey tinge of the galvanising on genuine hardware.
It's a specialised coating for corrosion protection for alloy and steel. From what I've seen, BMW use a similar (or the same?) coating.
However as Zinc is more reactive galvanically than both Alluminium and Steel, Zinc coatings in general offer excellent protection.
However all coatings on bolts are sacrificial in nature, which means the coating gets sacrificed for protection of the base material/s.
Because of this, in exposed environments (like suspension) a Zinc plate (shiny/bright Zinc), which is only a few microns thick, won't survive long.
Galvanised coatings (hot dipped or mechanically applied) are far superior and will last a long time.
They are more than adequate for the job if you can't get genuine hardware/coatings.
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Cheers
Marty
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Current:
2001 Audi S8 - Brilliant Black with Black interior, C5 RS6 rims (whenever I actually put them on...), Solar Sunroof, Tinted side and rear glass, RNS-D, Grom, Bose, clunky old phone in arm rest!
2002 Audi S8 - Project
Replacement head coming arrived  thanks to MJ
Silver with Black interior. All features as the '01, with the 'S' mode auto shifter. Dodgey rear tint (need to find a way to get rid of that).
Family:
2009 Volvo XC90 V8 R Design - has a louder more obnoxious exhaust than the S8, sounds great! Love this thing - Q7 was double the price, and certainly not double the car!
Sold:
1997 Audi A4 - Hamilton's Club Sport, Achat Grey (will miss the old girl)
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