Engineering Workspace
Bolt Torque Calculator & Engineering Guide - AluCalc
Determines the required torque to produce a specific clamp force while overcoming friction.
Mathematical Definition
T = K \cdot D \cdot F_p
T=Torque
K=Nut factor
D=Diameter
Fp=Preload
Real-Time Solver
T = K \cdot D \cdot F_p
Parameters Configuration
Interactive SolverTolerance limit
±0%
Tolerance limit
±0%
Tolerance limit
±0%
Calculated Output (T)
Waiting...
Calculation Procedure
- 1
Define system parameters for Bolt Torque.
- 2
Consult the technical reference table for material constants.
- 3
Apply the ASME B18.2.1 formula.
- 4
Run the post-calculation design checks.
Practical Engineering Application
In Fasteners applications, accurate Bolt Torque analysis is vital for safety and performance.
Nut Factor (K)(click row to select factor)
| Condition | K |
|---|---|
| Zinc-plated | 0.22 |
| Lubricated | 0.15 |
✓ Design Checklist
- • Verify bolt grade
- • Check engagement length
⚠️ Common Pitfalls
- • Using K=0.2 for lubricated bolts