DIN 661
DIN 661 Countersunk Head Rivets made of steel, stainless steel or brass etc.
The dimension of DIN 661 countersunk head rivets as below:
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| d1 | d2 | k | d3 min | e |
| 2 | 3.5 | 1 | 1.87 | 1 |
| 2.5 | 4.4 | 1.2 | – | – |
| 3 | 5.2 | 1.4 | 2.87 | 1.5 |
| 4 | 7 | 2 | 3.87 | 2 |
| 5 | 8.8 | 2.5 | 4.82 | 2.5 |
| 6 | 10.5 | 3 | 5.82 | 3 |
| 7 | 12.2 | 3.5 | – | – |
| 8 | 14 | 4 | 7.76 | 4 |
| 9 | 15.8 | 4.5 | – | – |
* All size in mm ;
