Large Opening: an alternative to the Standard shape with identical purpose, for easier connection of wider parts.
| Zinc plated steel | Ø 2,5 to 20 mm |
| Stainless steel | Ø 2,5 to 16 mm |
| Zicral | Ø 7 to 10 mm |

Large Opening: an alternative to the Standard shape with identical purpose, for easier connection of wider parts.
| Zinc plated steel | Ø 2,5 to 20 mm |
| Stainless steel | Ø 2,5 to 16 mm |
| Zicral | Ø 7 to 10 mm |