Flat Washer Flat Washer Type Standard Dimensional Standards DIN 125-1A Material Stainless Steel Material Grade/Class 18-8 Finish Plain For Screw Size M22 Inside Diameter 23 mm Outside Diameter 39 mm Maximum Thickness 3 mm System of Measurement Metric Minimum Thickness 3 mm Maximum Temperature 302 Degrees F Minimum Temperature -58 Degrees F Pack Size Small Pack Package Quantity 5