Sealing Washer Sealing Washer Type Metal Bonded Washer Finish Cadmium Plated Metal Material Steel Material Grade/Class Not Graded For Screw Size M10 Inside Diameter 10.414 mm Outside Diameter 16.002 mm Maximum Thickness 2.28 mm Seal Material Buna-N System of Measurement Metric Pack Size Small Pack Maximum Temperature 220 Degrees F Minimum Temperature -40 Degrees F Minimum Thickness 2.28 mm Seal Material Color Silver/Gold Thickness Tolerance +/-0.20 mm