Fastening, Torque & Joint Assembly worked example

Joint Inspection Workload at 13% access, recording, and retest allowance: a worked example

Suppose access, recording, and retest allowance falls to 13%. This page works the full calculation at that level so you can see exactly which result moves and by how much. Estimate inspection hours for fastened joints from joints to inspect, proven inspection rate, and allowance for access, recording, and retest.

The inputs for this scenario

  • Fastened joints requiring inspection: 360 joints (held at the documented default)
  • Accepted joint inspections per hour: 55 inspections / hr (held at the documented default)
  • Access, recording, and retest allowance: 13 % (the input this scenario stresses; the baseline uses 18)

Working through the calculation

  • The calculation starts from the formula this tool documents: Base joint inspection time = joints requiring inspection รท accepted inspections per hour.
  • Required joint inspection hours works out to 7.4 hr at these inputs, and this is the headline figure for the scenario.
  • Base inspection hours works out to 6.55 hr at these inputs.
  • Inspection allowance works out to 13 % at these inputs.
  • Joint inspection rate works out to 55 inspections / hr at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where access, recording, and retest allowance sits at 18% and the headline result is 7.72 hr, this scenario comes in 4.24% below the baseline at 7.4 hr.
  • It computes the labor-hours required to inspect a given set of fastened joints, including an allowance for access, recording, and retest time. When the numbers land here, the stressed input is the lever to work; the walkthrough above shows exactly how much each output recovers as it climbs back toward the baseline.

Results at a glance

  • Required joint inspection hours: 7.4 hr (headline result)
  • Base inspection hours: 6.55 hr
  • Inspection allowance: 13 %
  • Joint inspection rate: 55 inspections / hr

Run it with your numbers

  • To rerun this with your own numbers, open the live Joint Inspection Workload calculator, set access, recording, and retest allowance to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.