Carbon Steel Nut 1.Nominal Diameter: M6-M100 2.Length: 10mm-1000 mm 3.Grade of Strength : 4.8,8.8,10.9,12.9 4.Custom-made Various fastener producer in China.Mainly include: hex bolt and nut, high-strength bolt and nut, round nut, octagon nut ect.Material : Carbon steel, alloy steel1.Nominal Diameter: M6-M1002.Length: 10mm-1000 mm3.Grade of Strength : 4.8,8.8,10.9,12.94.Standard : GB,DIN,ANSI,BS ...