Grip-Rite Roofing Nail, Penny Size: 8d, Head Size: 7/16 in, Head Type: Large, Shank Type: Barbed, Smooth, Point Type: Diamond, 2-1/2 in L, Material Gauge: 11 ga, Steel, Electro-Galvanized, Approximate Nails per Pound: 114 lb, Package Weight: 5 lb
Large head for greater holding power
Smooth shank for ease of penetration
Electrogalvanized nail also appropriate for use with vinyl siding