DIN933, DIN7991, Threaded Rod manufacturer / supplier in China, offering Grade 12.9 Hex Nut Hex Nut Material Carbon Steel Hex Nut, Manufacturers Supply High Strength 304 Stainless Steel Hexagon Outer Hexagon Nut Hexagon Nut Standard Reverse Tooth Nut, M2 M3 M4 M5 M6 M8 M10 M12 Stainless Steel DIN934 Hex Nut M16 and so on.