ASMC Industrial offers a comprehensive selection of industrial, automotive, and construction fasteners.9, M12 Flange Bolt, Black Oxide Alloy Steel, 90 mm L Specifications allow for tolerances in dimension and shape, which can vary from lot to lot.75 x 90Diameter/Nominal Size: M12Length: 90System of Measurement: MetricMaterial: Alloy SteelFinish: Thermal Black OxideThread Pitch: 1.