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ISO 7380-1:2011(E)
Hexagaon socket button head screws
Mechanical property ISO 898-1:2013(E)
Class 10.9 . 12.9
Marking NE 010.9 / 012.9
Raw material : 5140 . 4135 . 4140 . SCM435
Thread,d | M3 | M4 | M5 | M6 | M8 | M10 | M12 | M16 |
| pa | 0.50 | 0.70 | 0.80 | 1.00 | 1.25 | 1.50 | 1.75 | 2.00 |
| bb ref. | 18 | 20 | 22 | 24 | 28 | 32 | 36 | 44 |
| da max. | 3.6 | 4.7 | 5.7 | 6.8 | 9.2 | 11.2 | 13.7 | 17.7 |
| dk max. | 5.7 | 7.6 | 9.5 | 10.5 | 14 | 17.5 | 21 | 28 |
| dk min. | 5.4 | 7.24 | 9.14 | 10.07 | 13.57 | 17.07 | 20.48 | 27.48 |
| dL ref. | 2.6 | 3.8 | 5 | 6 | 7.7 | 10 | 12 | 16 |
| ds max. | 3 | 4 | 5 | 6 | 8 | 10 | 12 | 16 |
| ds min. | 2.86 | 3.82 | 4.82 | 5.82 | 7.78 | 9.78 | 11.73 | 15.73 |
| dw min. | 5 | 6.84 | 8.74 | 9.57 | 13.07 | 16.57 | 19.68 | 26.68 |
| ecd min. | 2.303 | 2.873 | 3.443 | 4.583 | 5.723 | 6.863 | 9.149 | 11.429 |
| k max. | 1.65 | 2.2 | 2.75 | 3.3 | 4.4 | 5.5 | 6.6 | 8.8 |
| k min. | 1.4 | 1.95 | 2.5 | 3 | 4.1 | 5.2 | 6.24 | 8.44 |
| rf max. | 3.7 | 4.6 | 5.75 | 6.15 | 7.95 | 9.8 | 11.2 | 15.3 |
| rf min. | 3.3 | 4.2 | 5.25 | 5.65 | 7.45 | 9.2 | 10.5 | 14.5 |
| rs min. | 0.1 | 0.2 | 0.2 | 0.25 | 0.4 | 0.4 | 0.6 | 0.6 |
| rt min. | 0.3 | 0.4 | 0.45 | 0.5 | 0.7 | 0.7 | 1.1 | 1.1 |
| sd nom. | 2 | 2.5 | 3 | 4 | 5 | 6 | 8 | 10 |
| sd max. | 2.08 | 2.58 | 3.08 | 4.095 | 5.14 | 6.14 | 8.175 | 10.175 |
| sd min. | 2.02 | 2.52 | 3.02 | 4.02 | 5.02 | 6.02 | 8.025 | 10.025 |
| t min. | 1.04 | 1.3 | 1.56 | 2.08 | 2.6 | 3.12 | 4.16 | 5.2 |
| w min. | 0.2 | 0.3 | 0.38 | 0.74 | 1.05 | 1.45 | 1.63 | 2.25 |
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