... .What’s the specification of our Hex Flange metal Lock Nut? 1.NameCarbon steel zinc plated hex flange metal lock nut2 ... of nuts can we supply? 1.NameHex Nut;Square Nut;Nylon lock nut; hexagan domed cap nut; butterfly 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 ...