Place of Origin: Zhejiang China (Mainland) Brand Name: CF Model Number: Nut Standard: DIN;ASTM,etc Grade: 4,5,6,8,10, 1.Name Zinc Plated Hex Nut2.standardDIN,ASTM3.MaterialCarbon Steel4.Grade4,5,6,8,10,etc5.FinishZinc plated6.Size M3~M80;1/4"-3-1/4"7.Supply abiltity1000 tons per month8.CertificateISO9001:20009.Packing By carbon, then by pallet; Zinc Plated Hex Nut