Flat Washer, Flat Washer Type Standard, Dimensional Standards DIN 125-1A, Material Steel, Material Grade/Class Not Graded, Finish Zinc-Plated, For Screw Size M16, Inside Diameter 17.27 mm, Outside Diameter 30 mm, Maximum Thickness 3.3 mm, System of Measurement Metric, Minimum Thickness 2.7 mm, Color Silver, Inside Diameter Tolerance 0.669-0.68, Made in North America Not Made in North America, Manufacturer Location Globally Sourced, Material Quality Standards Not Rated