nut,nuts,hex nut Features: 1) From M3 to M30 in cold heading 2) Low-carbon, mid-carbon steel,stainless stell nut,nuts,hex nutFeatures:1) Standard: DIN934,DIN555 Size: From M3 to M30 in cold heading2) Low-carbon and mid-carbon steel3)Packing: Carton, 6ctns/pallet4)Class level: class 4,class5,class6,class8,class10 hex nut with zinc plated