... 3Surface:Black,Zinc,Dacro 4Certificate:ISO9 Different types of grade 8.8 bolt specification Details of the product:1Materials: 1045, 45#, ... *80,27*130,30*270 3Standard: DIN, ASTM, GOST, JIS, AS, etc. 4Grade: 8.8 (4.6, 5.6, 10. ... Black, Dacron grade 8.8 hex bolts4. Factory view figures: PackagingFactory viewTesting equipmentsWorkshop Welcome your visit! Different types of grade 8.8 bolt specification