... .8,9.8,10.9,12.96.Standard:DIN,ANSI/ASME,BS,GB,JIS,non-standard(DIN933,DIN931,DIN934 etc or BS917 etc ... on the total quality. About u and us Accept your design and OEM,We will offer the best serve for u ... ,9.8,10.9,12.9 6.Standard:DIN,ANSI/ASME,BS,GB,JIS,non-standard(DIN933,DIN931,DIN934 etc or BS917 etc ... on the total quality. About u and us Accept your design and OEM,We will offer the best serve for u ...