Flat Washers, Flat Washer Type Standard, Dimensional Standards DIN 9021, Material Steel, Finish Zinc Yellow, For Screw Size M10, Inside Diameter 10.5 mm, Outside Diameter 30 mm, Maximum Thickness 2.5 mm, System of Measurement Metric, Minimum Thickness 2.5 mm, Color Yellow, Inside Diameter Tolerance 0.413-0.424, Made in North America Not Made in North America, Manufacturer Location Globally Sourced, Material Quality Standards Not Rated, Maximum Temperature 350 Degrees C