Installation is simple and easy. No additional tools required. Installation is done by fingers and does not require any professional skills. The design features of the wing nut set it apart from other fasteners.
Round Wing DIN 315 – 1983
| Item No. | Size | d₁ | d | L | y | K | m | Bag | Carton | ||||||
| max | min | max | min | max | min | max | min | max | min | max | min | ||||
| mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | pcs | pcs | ||
| WN 33001 | M4 | 8 | 6 | 7 | 5.5 | 20 | 18 | 1.9 | 1.1 | 10.5 | 8.5 | 4.6 | 3.2 | 5000 | 10000 |
| WN 33002 | M5 | 11 | 8 | 9 | 7.5 | 26 | 24 | 2.3 | 1.5 | 13 | 11 | 6.5 | 4 | 1000 | 5000 |
| WN 33003 | M6 | 13 | 10 | 11 | 9 | 33 | 30 | 2.3 | 1.5 | 17 | 15 | 8 | 5 | 1000 | 3000 |
| WN 33004 | M8 | 16 | 13 | 12.5 | 10.5 | 39 | 36 | 2.8 | 2 | 20 | 18 | 10 | 6.5 | 1000 | 2000 |
| WN 33005 | M10 | 20 | 17 | 16.5 | 14.5 | 51 | 48 | 4.4 | 3.6 | 25 | 23 | 12 | 8 | 500 | 1000 |
| WN 33006 | M12 | 23 | 20 | 19.5 | 17.5 | 65 | 62 | 4.9 | 4.1 | 33.5 | 31 | 14 | 10 | 500 | 500 |
| WN 33007 | M16 | 29 | 26 | 23 | 21 | 73 | 70 | 6.4 | 5.6 | 37.5 | 35 | 17 | 13 | 200 | 200 |
| WN 33008 | M20 | 35 | 32 | 29 | 27 | 90 | 86 | 6.9 | 6.1 | 46.5 | 44 | 21 | 16 | 200 | 200 |
| WN 33009 | M24 | 44 | 41 | 37.5 | 35 | 110 | 106 | 9.4 | 8.6 | 56.5 | 53.5 | 25 | 20 | 200 | 200 |

| Item No. | Size | d₁ | d | L | y | K | m | Bag | Carton |
| mm | mm | mm | mm | mm | mm | pcs | pcs | ||
| WN 33010 | M6 | 16.2 | 11 | 44.7 | 4.8 | 19 | 8.6 | 1000 | 3000 |
| WN 33011 | M8 | 16.4 | 12.5 | 44.7 | 4.9 | 20 | 8.8 | 1000 | 2000 |
| WN 33012 | M10 | 28 | 16.5 | 50.5 | 6 | 23 | 9.3 | 500 | 1000 |
| WN 33013 | M12 | 23.2 | 19.5 | 64 | 8.3 | 26 | 12 | 500 | 500 |
| WN 33014 | M14 | 24.2 | 21 | 77 | 10.7 | 35 | 15.7 | 500 | 500 |
| WN 33015 | M16 | 29.8 | 23 | 91 | 13 | 40 | 16.2 | 200 | 200 |
| WN 33016 | M18 | 30.8 | 25 | 96.4 | 14 | 41 | 14 | 200 | 200 |
| WN 33017 | M20 | 34.0 | 29 | 106 | 15.5 | 48 | 15.5 | 200 | 200 |
| WN 33018 | M22 | 39.6 | 33 | 117 | 15.5 | 53.5 | 15.5 | 200 | 200 |
| WN 33019 | M24 | 42.8 | 37.5 | 148 | 16 | 60 | 16 | 200 | 200 |
