All threaded connections for which torques are not specified are considered standard. For the correct tightening of such connections, they have a special marking on the bolt head in the form of numbers or marks. Using the table below, knowing the bolt marking, thread diameter and thread pitch, you can determine the required tightening torque. The thread pitch can be determined using a standard thread gauge.
Using the table:
Using the marking, the group of the bolt is determined (screws, studs). Then, according to the bolt group, its diameter and thread pitch, the tightening force is determined.