1.Name: ASTM GR.2H High Strenth Heavy Hex Nuts 2.Meterial: ... Black plated 4.Size:M3~M80;1/4 1.What’s the specification of our Heavy Hex Nut? 1.NameASTM GR.2H High ... delivery time should be according to your order); 2.What else of nuts can we supply? 1.NameHex Nut;Square Nut ... .StandardDIN934,DIN985,DIN315,DIN1587, ISO,JIS& ANSI,GB ,BS,ASTM,Nonstandard nut (according to your order)etc.3.MaterialLow carbon ...