Corrosion is a complicated reaction influenced by many factors such as dissimilar metals, moisture, and environmental chemicals. However; structural connectors and their fasteners are attacked by corrosion in the same basic electrochemical manner.
If you use treated lumber, you must use corrosion resistant connectors and fasteners. USP offers anchors, hangers, framing angles, straps and fasteners in Gold Coat for twice the corrosion protection. Gold Coat is a multi-layer protection system that protects the integrity of the structural connector by offering two layers of corrosion resistance.
Galvanization is a layer of zinc which slowly delays corrosion from getting to the steel. Gold Coat is a barrier coating which protects the galvanization and prevents the zinc from being attacked by corrosion.