1.Size:M3-M76 2.Material:Carbon Steel, Mild ... C1045,etc 3.Standard:ISO,DIN,ASME,etc Grade 4.6 Bolt And Nut sizeM3-M76Faceplain,zinc plated,black oxide,hot ... Steel/Alloy Steel/Stainless SteelGrade4.6, 4.8, 5.6, 5.8,6.8, 8.8, 10.9 and 12.9standardDIN ,ANSI/ASME ... requirement of customerAll kinds of bolts and nutsPacking---In wooden cases or according to customers' requirements . Grade 4.6 Bolt And Nut