High Tensile Hexagonal Head fasteners are available in 8.8 and 10.9 grades for BoltsScrews and grades 8 and 10 for nuts.These fasteners are available in Metric, BSW, BSF, UNC and UNF threads.Finishes: Black Phosphated, Zinc plated, Yellow Zinc Plated, Cadmium Plated, Nickel Plated, Chromium Plated and Hot Dip Galvanized.