Material - High Quality Zinc Plated Steel 1.6 Millimeters. Metal Type. Stainless Steel. Washer Type. Flat. Unit Count. 100.0 Count. Size. M8. Item Diameter. 16 Millimeters. Color. Silver. Material Type 100 pack of washers Dimensions - Inner diameter 8mm (M8) A Corrosion-Retardant plating provides protection from external elements and extends the life of the metal used in these flat washer sets. Flat Washers – Frank's Fasteners M8 Flat Washers M8 Flat Washer Stainless Steel - (Sold In 100pc Pkg M3 Washers M8 Washer Dimensions - (8mm Internal Diameter) M8 Flat Washer Washer Type - Form A Flat Washer , Measurement - Metric Form A Washers are the most common type of washer and are also widely used in the engineering, automotive and construction industries., Size – M8 (8mm)