Bolt torque ↔ clamp force
Bolt size + class + torque → clamp force, stress, recommended torque (T=K·F·d).
How to use
- Enter the calculation conditions
Enter the dimensions, loads, speeds or operating conditions requested by the form.
- Run the calculation
The tool applies the formulas shown on this page to the entered values.
- Review the result
Review the resulting specification and checks, then verify them against the cited source, current standard and real operating conditions before use.
Core formula
F = T / (K · d)
Example using default values
F = 25 / (0.2 · 0.008) = 15,625 N (15.6 kN)
Source: ISO 898-1; JIS B 1082; VDI 2230; Shigley.
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