Specification table
| Code | Size (mm) | Packing | Packing |
|---|---|---|---|
| 21910 | 16 | 30 | 240 |
| 21912 | 20 | 20 | 160 |
| 21914 | 25 | 20 | 160 |
| 21916 | 32 | 8 | 64 |
| 21918 | 40 | 6 | 24 |
| 21920 | 50 | 4 | 16 |
| 21922 | 63 | 2 | 64 |
