Flat Washer Flat Washer Type Standard Dimensional Standards DIN 125-1A Material Steel Material Grade/Class Grade 5 Finish Zinc Yellow For Screw Size M7 Inside Diameter 7.4 mm Outside Diameter 14 mm Maximum Thickness 1.6 mm System of Measurement Metric Minimum Thickness 1.6 mm Maximum Temperature 302 Degrees F Minimum Temperature -58 Degrees F Pack Size Small Pack Package Quantity 100