Bolt Grades to Eurocodes
A table of bolt grades from Table 3.1 of BS EN 1993-1-8 is shown below. Starred values (*) are bolt grades typically used for Structural Engineering applications.
| Bolt Class | 4.6* | 4.8 | 5.6 | 5.8 | 6.8 | 8.8* | 10.9* |
|---|---|---|---|---|---|---|---|
| Yield Stress \(f_{yb}\) (N/mm2) | 240 | 320 | 300 | 400 | 480 | 640 | 900 |
| Ultimate Tensile Stress \(f_{ub}\) (N/mm2) | 400 | 400 | 500 | 500 | 600 | 800 | 1000 |