The goldish coating is also zinc, but derives its distinctive color from a yellow chromate, which lends thr coating additional corrosion resistance for outdoor use. Commonly seen for deck screws. IMO, yellow matches better when treated wood is new, but green looks better if the treated woods will fade with age and not be stained or painted.
The goldish coating is also zinc, but derives its distinctive color from a yellow chromate, which lends thr coating additional corrosion resistance for outdoor use. Commonly seen for deck screws. IMO, yellow matches better when treated wood is new, but green looks better if the treated woods will fade with age and not be stained or painted.