DIN 6798 Serrated Washer (Type A) is a washer specifically designed to prevent loosening in bolt and nut connections, featuring a serrated edge on its outer circumference. The serrated edges grip tightly to the surface of the fastener during installation, helping to prevent loosening caused by vibrations or external factors. Typically made from steel or stainless steel, it can also be coated for corrosion resistance. These washers are widely used in machine assemblies, automotive applications, electronics, and industrial settings due to their ability to provide a secure and robust connection.
| Boy/ Ø | for | d2 | s1 |
|---|---|---|---|
| 2,2 | M2 | 4,5 | 0,3 |
| 2,7 | M2,5 | 5,5 | 0,4 |
| 3,2 | M3 | 6 | 0,4 |
| 3,7 | M3,5 | 7 | 0,5 |
| 4,3 | M4 | 8 | 0,5 |
| 5,3 | M5 | 10 | 0,6 |
| 6,4 | M6 | 11 | 0,7 |
| 7,4 | M7 | 12,5 | 0,8 |
| 8,2 | M8 | 14 | 0,8 |
| 8,4 | M8 | 15 | 0,8 |
| 10,5 | M10 | 18 | 0,9 |
| 13 | M12 | 20,5 | 1 |
| 15 | M14 | 24 | 1 |
| 17 | M16 | 26 | 1,2 |
| 19 | M18 | 30 | 1,4 |
| 21 | M20 | 33 | 1,4 |
| 23 | M22 | 36 | 1,5 |
| 25 | M24 | 38 | 1,5 |
| 28 | M27 | 44 | 1,6 |
| 31 | M30 | 48 | 1,6 |