Simpson Strong Tie HUCQ610-SDS 6-Inch by 10-Inch Concealed Heavy Face Mount Joist Hanger with SDS Screws Provides a heavy-duty connection between joist and header The concealed-flange design provides cleaner lines for visible applications such as second-story decks and patio covers Install wood joists to wood, masonry and concrete Joist size: 6x10 Galvanized for extra corrosion resistance