... stainless steel, carbon steel, iron. 2.Grade: 4.8, 5.6, 5.8, 6.8, 8.8, 10.9. 3.Finished: plain, zinc ... Material: stainless steel, carbon steel, iron.Grade: 4.8, 5.6, 5.8, 6.8, 8.8, 10.9.Finished: plain, zinc plated, ... nuts,bolt,anchor bolt and so on. Our company offer DIN, ANSI, BS, JIS and it is also available following ... look forward to the future with you. 4.8, 5.6, 5.8, 6.8, 8.8, 10.9 bolt and nut