it provides extra protection against corrosion

9/16-12 x 4 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (150)

these fasteners provide superior strength and corrosion resistance

The T25 6-Lobe anchors have a zinc plating with a ceramic coat of white for increased rust protection

5/8-11 x 4 Grade 5 Plow Bolt No. 3 Head Fully Threaded Zinc Plated - Bulk (75) 7/8-14 Grade 8 Hex Cap Screws Plain - Domestic USA it provides extra protection againstEfficiently secure materials with this 5 8 11 x 4 Grade 5 Plow Bolt. Its No. 3 Head and full threading provide strong and consistent connections, while the zinc plating offers corrosion resistance. Purchase in bulk for cost effective and convenient use in multiple projects.