This standard specifies the inspection methods for tightening torque of construction machinery bolts. This standard is suitable for testing the tightening torque of bolts in construction machinery.
JB/T 6040-1992 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