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Glossary
Zinc Black Trivalent
A corrosion-resistant finish where metallic zinc is deposited on the fastener’s surface through electroplating. This is followed by a black trivalent chromate treatment that enhances both appearance and corrosion protection. A Zinc Black Trivalent finish is often used when a fastener needs to be both visually appealing and resistant to corrosion.
Appearance - A Zinc Black Trivalent plating results in a smooth, glossy black surface with a uniform finish.