roofing nails with umbrella head specification;8G*2"-13g*2" Shank Diameter:4.19-2.38 mm head diameter;14-20 mm roofing nails with umbrella headpacking: cartonsRoofing nail with washerMaterial: Q195/Q235 iron wire & plastic washerDiameter: 4.5mmLength: 65mm 75mm or according to your requestSurface: electro galvanizedPacking: 100sets/plastic bag 10 plastic bags/carton or as your request. ...