Bolted Joint Strength & Torque Calculator
ISO Standard 898-1 Metric Thread Engineering Tool
Bolt Specifications
Assembly Parameters
Engineering Calculation Results
Tensile Stress Area (As):
0.00 mm²
Proof Load (Fp):
0.00 kN
Target Clamp Force / Preload (Fi):
0.00 kN
Recommended Tightening Torque
0.0 N·m
Technical Notes
Calculations are based on ISO 898-1 standard geometry. The Tensile Stress Area formula used is As = (π/4) * (d - 0.9382*P)². Tightening torque is calculated using the short-form equation T = K * d * Fi. Ensure torque wrenches are properly calibrated. Always consult structural design documentation as real-world applications may require specific adjustments based on joint stiffness, material yielding, and thermal conditions.
Bolted Joint Engineering Report
1. Input Parameters & Specifications
| Nominal Diameter (d): | |
| Thread Pitch (P): | |
| Property Class / Proof Strength: | |
| Target Preload Percentage: | |
| Nut Factor / Friction Coeff (K): |
2. Calculation Results
| Tensile Stress Area (As): | |
| Proof Load (Fp): | |
| Target Clamp Force / Preload (Fi): |
Recommended Tightening Torque