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DigiCalcs

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Bolt torque relates to clamp force, preventing loosening and joint slippage. Proper torque specification is critical for safety.

Fórmula

Calculate: T = K × d × F where K is coefficient (0.15-0.2), d is diameter, F is clamp force
T
K × d × F where K is coefficient (0 — K × d × F where K is coefficient (0
K
K value — Variable used in the calculation
F
T / (K × d) — T / (K × d)

Guía paso a paso

  1. 1Calculate: T = K × d × F where K is coefficient (0.15-0.2), d is diameter, F is clamp force
  2. 2Or inverse: F = T / (K × d)
  3. 3Standard torque specifications follow ASME or ISO standards

Ejemplos resueltos

Entrada
M20 bolt (d=20mm), desired clamp F=100 kN, K=0.17
Resultado
Torque ≈ 340 N·m required
Use calibrated wrench

Errores comunes a evitar

  • Using dry bolt torque for lubricated conditions
  • Over-torquing and yielding bolts

Preguntas frecuentes

Why does torque vary by material?

Higher strength steel allows greater clamp force without yielding; coefficient K also varies with surface.

What happens with inadequate torque?

Joint relaxation and slippage; vibration causes eventual failure.

Configuración