Flat Washer Flat Washer Type Standard Material Nylon Material Grade/Class Grade 2 Finish Plain For Screw Size M10 Inside Diameter 10.5 mm Outside Diameter 22 mm Maximum Thickness 2.5 mm System of Measurement Metric Minimum Thickness 2.5 mm Color Off-White Pack Size Small Pack Thickness Tolerance +/-0.005 in Package Quantity 25