grade 8.8 bolt specification: 1Materials:Carbon steel 2Size:M24*80,27*130, ... ,Dacro 4Certificate:ISO9 Different types of grade 8.8 bolt specification Details of the product:1Materials: 1045, 45#, 40Cr, ... 9, etc.) 5Surface: Black, Zinc-plated, Dacro, etc. 6Proven technique & good quality.7Packaging: wood pallet &carton8We can produce by customer ... visit! Different types of grade 8.8 bolt specification