... each kind of architectural hardwares including barbed roofing nail,wire nail,steel nail,iron hinges,bolts, knob and other metal standard ... wire nail, umbrella roofing nails, coil nail, building nails, screw nail, concrete nail, also we can supply you the electro galvanized iron wire ... our quality control for our customers each time. Umbrella roofing nail 1) Product Specifications: 8G, 9G, 10G, 11G, 12G ...