Simpson Strong Tie T7SND1 7D Cedar and Redwood Siding Nails 2-1/4-Inch and 13-Gauge, 316 Stainless Steel, 1-Pound, 215-Piece 5/32-inch head diameter and .095-inch shank diameter Ideal for Cedar and Redwood decks and fences Checker pattern on heads to blend with wood grain Annular ring Shank increases pull-out resistence Choose 316 Stainless Steel for seaside applications