... 3.Standard:ISO,DIN,ASME,etc Grade 4.6 Bolt And Nut sizeM3-M76Faceplain,zinc plated,black oxide,hot dip galv ... , 5.6, 5.8,6.8, 8.8, 10.9 and 12.9standardDIN ,ANSI/ASME,BS,GB,JIS,etcpackingin wooded cases ... ,etcSpecial design available as the requirement of customerAll kinds of bolts and nutsPacking---In wooden cases or according to customers' requirements . Grade ...