Mechanical Properties Of Fasteners
| Strength grade | Tensile strengh N/mm2 | Hardness | Yield strength N/mm2 | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Brinell Hardness | Rockwell Hardness | ||||||||
| Min. | Max. | Min. | Max. | HRB | HRC | Min. | |||
| Min. | Max. | Min. | Max. | ||||||
| 3.6 | 333 | 480 | 90 | 150 | 49 | 82 | -- | -- | 196 |
| 4.6 | 392 | 539 | 110 | 170 | 62 | 88 | -- | -- | 235 |
| 4.8 | 314 | ||||||||
| 5.6 | 490 | 686 | 140 | 215 | 77 | 97 | -- | -- | 294 |
| 5.8 | 392 | ||||||||
| 6.6 | 588 | 784 | 170 | 245 | 88 | 102 | -- | -- | 353 |
| 6.8 | 421 | ||||||||
| 6.9 | 529 | ||||||||
| 8.8 | 784 | 980 | 225 | 300 | -- | -- | 18 | 31 | 627 |
| 10.9 | 980 | 1176 | 280 | 365 | -- | -- | 27 | 38 | 882 |
| 12.9 | 1176 | 1372 | 330 | 425 | -- | -- | 34 | 44 | 1058 |
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