1.Name:Hex flange metal lock nut 2.Meterial:Carbon steel 3.Finish:Zinc plated(Cr,3+) 4.Size:1/ ... nut;wing nut;2.StandardDIN934,DIN985,DIN315,DIN1587, ISO,JIS& ANSI,GB ,BS,ASTM,Nonstandard nut (according to your order)etc.3.Materiallow carbon ... steel; medium carbon steel(1035/1045); Alloy carbon steel;stainless steel,etc ...