Quick Details: Product name: rubber washer nails or corrugated roofing nails umbrella head roofing nails with rubber washer Brand Name: xstg Model Number: all sizes Type: roofing nails Material: iron,Q195,Q215,Q235 Place of Origin: Hebei China(mainland) Lengh: 2''-5'' Head Diameter: 22mm Shank Diameter: 3.5mm-5.5mm Head Style: umbrella head Surface Treatment: galvanized Packaging & Delivery: Packing Detail: 100pcs/bag,10bags or 20bags/carton Delivery Detail: 15-30days after receiving the deposite