Specifications DIN6923 flange nut 1.Metail:Carbon steel,stainless 2.Size:M3-M48 1/4"-3" 3.Standards:DIN ,ANSI/ASME,BS,GB HEXAGON NUTS WITH FLANGE Standard:DIN6923, IFI 1986 D-12Class:6/8 Gr.2/Gr.5Material:Steel/Stainless Steel/BrassDiameter:M4-M20 1/4"-3/4"StandardDIN, BS, IFI, JIS, AS, GB,Non-standardSizeM6~M24SurfacePlain, Zinc(Yellow Zinc, White Blue Zinc), Black, DakeluoGrade of Strength4,6,8 ...