... :M6-M36,length:12mm-300mm3)Grade:4.6,4.8,5.6,5.8,6.8,8.84)Materail:C1010,Q235,c1035.c10455)Surrace:plain,black ... /DIN601/ISO4017 hex head bolt grade:4.6,4.8,5.6,5.8,6.8,8.8Size:M6*16-50 M8*20-100 M12*20 ... name:DIN931/DIN960/ISO4014 hex head boltGrade:4.6,4.8,5.6,5.8,6.8Finish:plain,black,zinc plated(yellow,blue)Size ...