Bolt Torque Calculator
Calculate proper tightening torque based on bolt specifications and material properties
Bolt Torque Calculator
Calculate proper tightening torque based on bolt specifications and material properties
Yield Strength: 640 MPa
Friction coefficient (K): 0.05 - 0.5
Typical range: 70-80% (max safe: 85%)
Quick Examples
About Bolt Torque
Proper bolt torque ensures adequate preload force while preventing overtightening and bolt failure.
Applications:
- Structural connections
- Flange assemblies
- Machine assembly
- Automotive applications
- Pressure vessels
Core Formula
Safety Guidelines
• Target preload: 70-80% of yield strength
• Maximum safe preload: 85% of yield
• Use torque wrench for critical applications
• Consider lubrication effects on friction
• Verify bolt grade and material properties
• Account for dynamic loading and fatigue
Examples
About
Calculate proper bolt tightening torque for structural and mechanical applications.
Guidelines
• Target preload: 70-80% of yield
• Maximum safe: 85% of yield
• Use proper torque wrench