Nut

Diameter.: 3MM--72MM (1/4"---3")
  Grade: 6/8/10/12(ANSI 2/5/2H)
  Surface: Zinc Plated, BLACK, PLAIN, YZP, HDG
  Standard: DIN, ANSI, UNI, JIS, ISO
  incl.DIN934/439/6923,DIN985/986/982,ANSI18.2.2, BS1083,ISO4032/4035
  Packing: bulk or small box packed in cartons, then in pallets.