The Deck-Drive™ DCU COMPOSITE screw from Simpson Strong-Tie is designed to work in all types of decking (composite and encapsulated composite) without sacrificing performance. The DCU COMPOSITE screw provides a cleaner, less noticeable installed appearance due to the special head design and is available in 11 colors, matched to blend with most composite deck products. These screws are offered in bulk and collated for the Quik Drive® auto-feed screw driving system.
Learn More: http://www.strongtie.com/ftp/fliers/F-F-DCU14.pdf
Information provided by Simpson Strong Tie