Flange Nut Material Grade/Class 316 H5 Material Stainless Steel Finish Plain Thread Size M10-1.5 Hex Width 15 mm Hex Height 8 3/16 mm Flange Diameter 21 51/64 mm System of Measurement Metric Dimensional Standards ISO 9001 2015 Flange Thickness 1.81 mm Hex Type Flange Nut Material Quality Standards ASTM A276 Minimum Yield Strength 30 000 psi Overall Height 10 mm Pack Size Small Pack