... nut 1.Material: stainless steel, carbon steel, iron. 2.Grade: 4.8, 5.6, 5.8, 6.8, 8.8, 10 ... .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, HDG.Size: M6-M60, 1/4”-2.1/2”Length: 6-300mm bolt and nutMaterialstainless steelcarbon ... .Thank you for visiting and we look forward to the future with you. 4.8, 5.6, 5.8, 6.8, 8 ...