Metric copper sealing washers are used for sealing components on automotive, truck, heavy duty, marine, and industrial engine systems
| Type | Sealing Washer |
| Style | Metric |
| Size | M12 |
| Material | Copper |
| I.D. | 12.2 mm |
| O.D. | 17.8 mm |
| Thickness | 1.4MM |
