roofing nails with washer umbrella/flat head 1) Dia: BWG8-BWG13 2) Size: 38.1 mm-76.2mm (1.5"-3") 3) Material: Q235/Q195 umbrella/flat head 1) Dia: BWG8-BWG13 2) Size: 38.1 mm-76.2mm (1.5"-3") 3) Material: Q195/Q235Roofing Nail's Packing specification: Bulk (25 kgs/box) or small packing (has or does not have trademark) or according to customer request Shanked roofing nailmain parameter Specs 8BWG×2 9BWG×1.5 10BWG×1.75 8BWG×2.5 9BWG×2 10BWG×2 8BWG×3 9BWG×2.5 10BWG×2.5 8BWG×4 9BWG×3 10BWG×3