ISO 14579
Socket head cap screw,hexalobular (Torx) drive
ISO standard (2011) · ISO 4762 with a Torx socket · Sizes M2–M20
| Size | P (mm, coarse) | dk (mm, max) | k (mm, max) | T (nom.) | A (mm, nom.) | t (mm, min) | Break (kN, min) | Torque (N·m, µ 0.14) |
|---|---|---|---|---|---|---|---|---|
| 0.50 | 5.50 | 3.00 | 10 | 2.80 | 1.01 | 6.1 | 2.5 | |
| 0.70 | 7.00 | 4.00 | 20 | 3.95 | 1.42 | 10.7 | 5.8 | |
| 0.80 | 8.50 | 5.00 | 25 | 4.50 | 1.65 | 17.3 | 11.6 | |
| 1.00 | 10.00 | 6.00 | 30 | 5.60 | 2.02 | 24.6 | 19.6 | |
| 1.25 | 13.00 | 8.00 | 45 | 7.95 | 2.92 | 44.7 | 47.7 | |
| 1.50 | 16.00 | 10.00 | 50 | 8.95 | 3.62 | 70.7 | 93.8 | |
| 1.75 | 18.00 | 12.00 | 55 | 11.35 | 4.82 | 102.8 | 161.5 | |
| 2.00 | 24.00 | 16.00 | 70 | 15.70 | 6.62 | 191.1 | 398.4 | |
| 2.50 | 30.00 | 20.00 | 90 | 20.20 | 8.69 | 298.6 | 778.4 |
Values per ISO 14579:2011. Breaking load per ISO 898-1; torque per VDI 2230, µ = 0.14.
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References
- ISO 14579:2011 Hexalobular socket head cap screws
- ISO 4762:2004 Hexagon socket head cap screws
- ISO 898-1:2013 Mechanical properties of fasteners made of carbon steel and alloy steel — Part 1: Bolts, screws and studs
- ISO 3506-1:2020 Fasteners — Mechanical properties of corrosion-resistant stainless steel fasteners — Part 1: Bolts, screws and studs
- VDI 2230 Part 1:2015 Systematic calculation of highly stressed bolted joints — Joints with one cylindrical bolt