Grip-Rite GRCR4DGAL 1-1/2-Inch by 15 Degree Galvanized Coil Roofing Nail (7,200 per Box) 1-1/2" x .120" x 3/8" Diameter Thin Flat Head Electro-Galvanized, Smooth Shank "High Wire" Collation Compatible with Most Tools 120 Count Coils, 7200 Nails per carton Use with Grip-Rite GRTCR175 Coil Roofing Nailer