... : DIN 6923 Meterial: steel, SS, carbon steel,alloy steel, Finish:Zinc plated, Plain,Black,etc Size: M5-M30 Standard: DIN,ISO,BS ... ,AS,JIS,ASTM,Non-standardThread: unc, unf, metricSurface: Zinc,Black,Plain , etc. Packing: bulk packed,small color box,we ...