This standard specifies the inspection tools and inspection methods for the tightening torque of engineering machinery bolts. See Appendix A for bolt tightening torque values. This standard is suitable for testing the tightening torque values of bolts tightened in construction machinery.
JB/T 6040-2011 history
2011JB/T 6040-2011 Construction machinery.Test methods of tightening torque for bolts
1992JB/T 6040-1992 Engineering machinery Test method of tightening torque of bolts