Tel:+(86)150-3002-9626
Email: wins@keqifastener.com
DIN 9021 – 1990 Large Plain Washers – Product Grade A DIN 9021 Flat Fender Washers are round flat washers with a larger outer diameter (OD) approximately 3 xinner diameter (ID).
These larger OD washers are typically used to distribute the load over a larger bearing surface than a standard flat washer.

All measurements in millimeters (mm)
| d1 | used for | d2 max | s |
| 3.2 | M3 | 9 | 0.8 |
| 4.3 | M4 | 12 | 1 |
| 5.3 | M5 | 15 | 1.2 |
| 6.4 | M6 | 18 | 1.6 |
| 8.4 | M8 | 24 | 2 |
| 10.5 | M10 | 30 | 2.5 |
| 13 | M12 | 37 | 3 |
| 15 | M14 | 44 | 3 |
| 17 | M16 | 50 | 3 |
| 20 | M18 | 56 | 4 |
| 22 | M20 | 60 | 4 |

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Tel:+(86)150-3002-9626
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