... boltsStandard: GB37,DIN,JIS,ANSIGrade:Class 4.8, Class 6.8, Class 8.8, Class 10.9, Class ... 12.9Size: M(6--10)*(16-100mm)Detailed Description:Hexagon head bolt Brand nameDingshengPlace ... A2(304),A4(316)SizeM(6-10)*(16-100mm)GradeClass 4.8, Class 6.8, Class 8.8, ... experiece in the production variety of the screws,bolts,nuts,washer and relative hardwarePhotoes as following: T- ...