 |
| |||
| hexagonal bolt head; hexal bolt head | |||
| шестигранная головка болта: 29 phrases in 13 subjects |
| Automated equipment | 1 |
| Automobiles | 3 |
| Aviation | 1 |
| Construction | 4 |
| Electrical engineering | 1 |
| Electronics | 3 |
| Forestry | 1 |
| General | 1 |
| Mechanic engineering | 3 |
| Mechanics | 1 |
| Nautical | 1 |
| Technology | 7 |
| Transport | 2 |