Fastener Manufacturing & Thread Rolling worked example
Scrap Value Loss at 98% nonrecoverable loss factor: a worked example
What does the result look like when nonrecoverable loss factor reaches 98%? The full calculation is worked below with real intermediate numbers. Use it to quantify heading scrap, thread rolling defects, heat treat rejects, plating failures, sorting fallout, or customer-return scrap.
The inputs for this scenario
- Scrapped fastener quantity or weight: 850 pieces or lb (unchanged)
- Value at scrap point: 0.18 $ / unit (unchanged)
- Nonrecoverable loss factor: 98 % (raised for this scenario; the documented default is 85)
- Sorting, freight, or disposal cost: 125 $ (unchanged)
Working through the calculation
- Applying the documented formula (Scrap value loss = scrapped quantity × value at scrap point × nonrecoverable factor + fixed handling cost) to the inputs above produces each figure below.
- At this operating point the engine returns 275 $ for total scrap value loss, the number this scenario is built around.
- At this operating point the engine returns 0.32 $ / unit for loss per scrapped unit.
- At this operating point the engine returns 150 $ for nonrecoverable variable loss.
- At this operating point the engine returns 125 $ for fixed handling cost.
How this compares with the baseline
- Against the tool's baseline example, where nonrecoverable loss factor sits at 85% and the headline result is 255 $, this scenario comes in 7.8% above the baseline at 275 $.
- A figure at this level is achievable when nonrecoverable loss factor is genuinely sustained, not just peaked for a shift. It uses a single value-at-scrap-point, so a mix of parts scrapped at different process stages (cheap pre-thread blanks vs fully heat-treated parts) needs separate runs to stay accurate.
Results at a glance
- Total scrap value loss: 275 $ (headline result)
- Loss per scrapped unit: 0.32 $ / unit
- Nonrecoverable variable loss: 150 $
- Fixed handling cost: 125 $
Run it with your numbers
- Every input above is editable in the live Scrap Value Loss calculator, which recalculates instantly and can be shared with the inputs intact.
Last reviewed 2026-05-12.