grade 8.8 bolt specification: 1Materials:Carbon steel 2Size:M24*80,27*130,30 ... ,Zinc,Dacro 4Certificate:ISO9 Different types of grade 8.8 bolt specification Details of the product:1Materials: 1045, 45#, 40Cr, ... ASTM, GOST, JIS, AS, etc. 4Grade: 8.8 (4.6, 5.6, 10.9, 12.9, etc.) 5Surface: Black, Zinc-plated, Dacro ... equipmentsWorkshop Welcome your visit! Different types of grade 8.8 bolt specification