Сalculators for engineers 
Bolt Tightening Calculator
The calculator calculates the bolt tightening torque based on the axial force, and the axial force in the bolt based on the tightening torque.
All data and calculation results on this web site are for reference only, we are not responsible for any consequences of using this information
Initial Data
Calculation Parameters
Thread Diameter (D), mm
6
Thread Pitch (P), mm
1
Clearance Hole Diameter (D_hole), mm
6.6
Wrench Size (S), mm
10
Thread Friction Coefficient
0.4
Bearing Surface Friction Coefficient
0.19
All data and calculation results on this web site are for reference only, we are not responsible for any consequences of using this information
Calculation Results
There are no calculation results yet.
Bolt Axial Force
(Standard Formula) (F), N
(Standard Formula) (F), N
Bolt Axial Force
(Simplified Formula) (F), N
(Simplified Formula) (F), N
Tightening Torque
(Standard Formula) (M), N·m
(Standard Formula) (M), N·m
Tightening Torque
(Simplified Formula) (M), N·m
(Simplified Formula) (M), N·m
Bolt Material Selection
Stress in Section
accounting for Safety Factor, MPa
accounting for Safety Factor, MPa
Minimum Strength Class
Material