... 6" (19mm to 152mm)Material: Q235 low carbon steelUmbrella head smooth shank or twist shank diamond ... 38mm, 45mm, 50mm, 57mm, 64mmMaterial: 45# medium carbon steel, hardenShape:18mm-32mm: 40pcs per strip, 50strip per ... 4" (25mm to 100mm)Material: Q235 low carbon steelLarge flat head smooth shank yellow zinc plated diamond ... , 32mm, 38mm, 45mm)Material: Q195 low carbon steel High quality coil nails