A durable 4-layer epoxy coating ensures superior resistance to rust and corrosion, while the Star/Torx drive minimizes slippage and camout for secure installation. 25-LB 3-IN TAN EXT SCREW(-323990). Epoxy Coating: Screws feature a 4-layer epoxy coating for enhanced corrosion resistance, making them ideal for use in pressure-treated wood and outdoor decking, as they prevent staining and ensure long-lasting durability.