Washer Type: Flat, Internal Diameter: M6 (6mm), External Diameter: 12mm, Thickness: 1.5mm. Package Included: 20 Pieces Flat Washers M6 x 12mm.Material: Our flat washers are made of high-quality carbon steel, make sure the service life of the washer is durable and not easy to be corroded, which is environment-friendly, no pollution has high hardness, and convenient for daily work needs.Function: The flat round sealing washers can effectively disperse the pressure generated by the fastener head, by increasing the contact area, parts can be protected from damage, in addition, it can reduce friction, prevent leakage, isolate, prevent loosening, and more.Easy to Use: The washer's surface are smooth can reduces friction between the fasteners, prevents leakage, isolates, prevents loosening or dispersion pressure.Wide Application: Flat washers are perfect for household and commercial appliances, electrical connections, home repair, automotive repair, machine appliances, marine, and other vehicle uses. The washer spacer is an indispensable accessory for daily use and work. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.