... :Steel... 3.Size: M2-M64,1/8"-4" 4.Finish:Zinc Plated... 1.Name:Machine Screw Nut 2.Material:Steel... 3.Size: M2 ... -M64,1/8"-4" 4.Finish:Zinc Plated...DescriptionMachine Screw ... , Alloy steel, Stainless steel, brass etc.SizeM2-M64, 1/8”-4”ThreadMetric, UNC, UNF, BSWFinishPlain, Galvanized, Black, Nickel, Chrome, H.D ...