... 130,30*270 3Surface:Black,Zinc,Dacro 4Certificate:ISO9 Different types of grade 8.8 bolt specification Details of the product:1Materials: ... 6, 5.6, 10.9, 12.9, etc.) 5Surface: Black, Zinc-plated, Dacro, etc. 6Proven technique & good quality. ... Zinc, Black, Dacron grade 8.8 hex bolts4. Factory view figures: PackagingFactory viewTesting equipmentsWorkshop Welcome your visit! Different types of grade 8 ...