Flat Washer Flat Washer Type Standard Dimensional Standards DIN 125A Material Stainless Steel Material Grade/Class 18-8 Finish NL-19 For Screw Size M5 Inside Diameter 5.3 mm Outside Diameter 10 mm Maximum Thickness 1 mm System of Measurement Metric Minimum Thickness 1 mm Color Silver Pack Size Small Pack Resistance Properties Corrosion Resistant Thickness Tolerance +/-0.10mm Package Quantity 100