Tuerca de resorte
| Talla |
| M6 x 6: 35 x 20 x 31-32 mm |
| M8 x 6: 35 x 20 x 31-32 mm |
| M10 x 8: 35 x 20 x 31-32 mm |
| M12 x 9,5: 35 x 20 x 31-32 mm |
