... FEATURE: No Point, Blunt Diamond Point, Diamond Point, Screw Shank or Ring Shank ROOFING NAIL STANDARD: DIN GB SPECIFICATION ... 1022A FEATURE: No Point, Blunt Diamond Point, Diamond Point, Screw Shank or Ring Shank FINISH: Polished, Electric Galvanized, Heat Treated ... Roofing Nails, Galvanized Concrete Nails, wood screws, self-drilling screw, chipboard screws and so on. Umbrella Head Roofing Nails