... :ISO,DIN,ASME,etc Grade 4.6 Bolt And Nut sizeM3-M76Faceplain,zinc plated,black ... oxide,hot dip galv.etcMaterialCarbon Steel/Alloy Steel/Stainless SteelGrade4.6, 4.8, 5.6 ... , 5.8,6.8, 8.8, 10.9 and 12.9standardDIN ... the requirement of customerAll kinds of bolts and nutsPacking---In wooden cases or according to customers ...