Simpson Strong Tie N8D5HDG Structural Connector 1-1/2-Inch by 0.131-Inch 10-Gauge Smooth Shank Hot-Dip Galvanized Nails
These Simpson Structural Connectors are coated fasteners with a medium level of corrosion protection, making them suitable for use in som exterior and corrosive environments and with some preservative-treated woods.  For higher corrision exposure, use stainless steel fasteners.