ecrou
| hexagonal
| écrou abbr. | |
| chem. | mother |
| cycl. | nipple |
| industr. construct. | female screw; nut |
| med. | swivel |
| met. | flynut |
| pack. | screwed nut; nut; screw nut |
| sport. | shell |
| hexagonal abbr. | |
| chem. | hexagonal |
| |||
| mother | |||
| nipple spoke (de rayon) | |||
| female screw; nut | |||
| swivel | |||
| flynut | |||
| screwed nut; bolt nut; screw nut | |||
| shell | |||
| screw | |||
| |||
| nuts | |||
|
ecrou : 555 phrases in 24 subjects |
| Agriculture | 5 |
| Antennas and waveguides | 1 |
| Chemistry | 3 |
| Construction | 27 |
| Cycle sport | 1 |
| Cycling other than sport | 5 |
| Electronics | 4 |
| Forestry | 3 |
| General | 26 |
| Hobbies and pastimes | 1 |
| Industry | 33 |
| Information technology | 1 |
| Law | 7 |
| Materials science | 15 |
| Mechanic engineering | 210 |
| Medical | 1 |
| Metallurgy | 21 |
| Packaging | 6 |
| Pest control | 1 |
| Sports | 1 |
| Technology | 102 |
| Telecommunications | 1 |
| Tools | 2 |
| Transport | 78 |