Standard:DIN933 ASME B18.0.1 GB5783
Size:M1.6-M48 NO.4——1-1/2
Material:Carbon Steel, Alloy Steel,Stainless Steel 304/316/201
Grade:Class 4.8/ 5.8, Class 8.8, Class 10.9
Surface Treatment: Zinc Plated Blue/White,Zinc Plated Yellow, Hot Dipped Galvanized, Plain