1)Product class: Roofing Nail, common nail,concrete nail,shoes nail,cupper nail, without head nail 2) Material: made of high-quality low-carbon-steel 3) Finish: electric galvanized, hot dipped galvanized, bright, flat head or checkered head, diamond point, barbed or smooth shank 4) Specifications: 2"-12", BWG17-BWG4 Packing: Bulk, box, bag, or according to customers' requests