Plain Washer Flat Washer Type Standard Dimensional Standards DIN 433 Material Steel Material Grade/Class Grade 2 Finish Zinc Plated For Screw Size M3 Inside Diameter 3.2 mm Outside Diameter 6 mm Maximum Thickness 0.5 mm System of Measurement Metric Minimum Thickness 0.5 mm Maximum Temperature 302 Degrees F Minimum Temperature -58 Degrees F Pack Size Small Pack Package Quantity 100