... , 5.6, 5.8,6.8, 8.8, 10.9 and 12.9standardDIN ,ANSI/ASME,BS,GB,JIS,etcpackingin wooded cases,or ... as to clients'requirements applicationused as the static sealing element of ... available as the requirement of customerAll kinds of bolts and nutsPacking---In wooden cases or according to customers' requirements . Grade 4.6 Bolt And Nut