... Nails/Umbrella Head Nails Material: Q195,Q235 Certificate: ISO9001:2000 Special Manufacturer&Exporter Available Sizes SpecificationTwisted or Plain Cap Diameter9# ... Galvanized, Hot-Dip Galvanized, Copper , Stainless Steel, Plastic Cap, Aluminium.We can supply you with full kinds of fasteners ... flange nuts, wing nuts, weld nuts, square nuts, cap nuts.Washers: flat washers, spring washers, lock washers, ...