Key Inspection Points for Bolt Tightening Checklist

Below is a checklist of the key inspection points for four different bolt tightening methods: turn-of-nut, calibrated wrench, direct tension indicator (DTI), and twist-off bolts. 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.

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