... , Roofing & Cladding Fasteners, Self Tapping Screws, Socket Screws Products, Stainless Steel Sceurity Screws, Threaded Bar, Washers, Woodscrews & Associated ProductsStandard DIN, ANSI ... , BS, EN ISO, IFI, SAE, GB, JISMaterials Carbon Steel, Copper, Nylon, Alloy Steel, Aluminium, Brass, Stainless SteelGrades 4.8, 5.6, 6 ...