These Grip Rite GRCR3DGAL 1-1/2" x .120" Galvanized Coil Roofing Nails are suitable for a wide range of do-it-yourself and professional applications. They can be used for attaching shingles, installing vinyl siding and various outdoor repairs. These silver galvanized roofing nails are compatible with most coil roofing nailers available. They have thin flat heads that are approximately 3/8" in diameter. Grip Rite GRCR3DGAL 1-1/2" x .120" Galvanized Coil Roofing Nails, 7,200-Count: Ideal for attaching roofing shingles and vinyl siding applications.Special High Wire collation is compatible with the majority of coil roofing nailers on the marketSilver1-1/2" x .120"3/8" diameter thin flat headPack contains a 7,200-count of Grip Rite roofing nails