Flat Washer Flat Washer Type Standard Dimensional Standards DIN 125-1A Material Brass Material Grade/Class Grade 2 Finish Plain For Screw Size M8 Inside Diameter 8.4 mm Outside Diameter 16 mm Maximum Thickness 1.6 mm System of Measurement Metric Minimum Thickness 1.6 mm Pack Size Small Pack Thickness Tolerance +/-0.20mm Package Quantity 50