... :iron wire,steel wire 4.BWG9x2.5", BWG12x2" Umbrella Head Roofing Nails Anping Yuze Hardware ... South Korea,Vietnam,Singapore,HongKong,Taiwan.Galvanized Umbrella head Roofing NailsRoofing nails can be made ... variety of types with Flat head or Umbrella Head, Diamond Point, Smooth Shank and Twisted ... /2Twisted or Plain 15mmMost Popular is BWG9*2.5"Finish : Electro Galvanized, Hot-Dip Galvanized, Copper ...