Roofing nail 1)material: Q195,Q235 2)specification: 2''x12G 3)length: 13mm-310mm 4)diameter: 09mm-12mm Roofing Nail1.Material: low carbon steel2.Length: 10mm-600mm3.Diameter: 1.6mm-6.0mm4.Head: flat,oval,headless5.Finished: polished,galvanized,hot dip galvanized,6.Shank: smooth,twist,ring7.Point: long or short diamond port,non point8.Packing: by box or carton,according to customers requirement. ...