Simpson Strong-Tie #12 x 5-1/2-in Black Galvanized/Coated Round Washer Interior/Exterior Wood Screws

The Outdoor Accents structural screw reduces installation time by driving easily without predrilling. When combined with the patent-pending, load-rated Outdoor Accents structural washer, the solution delivers the decorative appearance of a bolt connection but with a much easier installation than through-bolting. The structural screw and washer are sold separately from each other and the Outdoor Accents connectors. Its bold thread design enables superior holding to attach ledgers and other connections.