Below is a table of the specific units of measure used for structural bolts. Torque is a turning force. In the case of bolting, it is the amount of turning force applied to a nut. Tension or load, however, is the amount of clamping force generated as the nut is tightened. It is tension or load that holds the joint together. Note that some specifications described in the following content may not be the same as the specifications followed by your agency. Always check with your State agency’s standards and specifications when using these guidelines.