How to calculate the tightening torque of bolts?
How to calculate the tightening torque of bolts? The formula that expresses the relationship between the load in a bolt and applied torque is: K is the coefficient of friction. Your coefficient will depend on the material of your bolt/nut, the type of lubrication (or, rarely, the lack of lubrication) and the size of the bolt. The nominal bolt diameter is d in this equation. What's the best way to check for torque? Methods of inspecting the tightening torque Method Loosening Torque Retightening Torque Marking T-Point Measuring method Loosen the bolt using a torque wrench and read the torque when...