Simpson Swan Secure S11A300PNJ 3-Inch by 0.120-Inch Type 304 Stainless Steel Ring Shank with 15-Degree Wire Coil and 17/64-Inch Head, 1800-Pack 15 Degree Wire Coil Checker Pattern on Heads blends with Wood Grain, Reduces Glare Annular Ring Shank increases pull-out resistance Type 304 Stainless Steel Ring Shank Decking/Framing Nails