Engineering tools
Torque
Torque
calculator
Choose bolt size and property class; see the required torque, the right wrench and pump pressure instantly.
Required torque
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- Preload
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- Stress area
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- Nut across flats
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Wrenches for this torque
No catalogue wrench fits this torque. Ask our engineers for a custom solution.
The simple method uses T = K·F·d; the VDI 2230 method treats thread and under-head friction separately and includes the torsion from tightening. Yield values are from ISO 898-1, ASTM A193/A320 and SAE J429. For critical joints, use the bolt manufacturer's and project specification values.