... .Zinc,Nickel plated,Black Oxide,HDG 4.SGS,ISO Nylon insert lock nut 1. Standard: DIN, ANSI,BSW, JSB ans ISO standard ... ,SS316 A4 etc), Brass or according require.3. Grade of Nylon insert lock nut : Metric standard: Grade 4.8, Grade6.8, Grade8.8 ... , Galvanized with Zinc, HDGSizeM3-M64Thickness3.2mm-51mmPitch0.25mm-6mmNylon insert lock nut Product pohot examples: If you have any question, please feel ...