... steel nails diameter: 1.6-6.0mm surface treatment: galvanized or polished material: low carbon steel Common Steel Nailsfinished: polished / electro galvanized ... -carbon-steel and stainless steelModel: Common nails, Roofing nails, Book nails,Square boat nails,Duplex Head Nails, Finishing nails,Coil Nails,Cement Nail,U-shade Nail, etc ...