Two-Bin / Kanban Fastener Replenishment
Two-bin kanban uses two bins per part. When the front bin empties, it becomes the reorder signal while the back bin keeps production running.
Two-bin rules
| Rule | Why |
|---|---|
| Bin size covers lead time plus safety | No stockout while refilling |
| Empty bin goes back or is scanned | The signal |
| Label every bin with part and quantity | Accurate refills |
| Review sizes as usage changes | Avoid overstock and shortages |
Governing standards: Lean / kanban practice. Editions shown are the latest confirmed as of September 2026. The drawing and the governing standard always take precedence over this sheet.
These tables carry the same figures as the printed sheet below.
The printed sheet

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Text version of this sheet
Two-bin kanban fastener replenishment
What it is
AT A GLANCE
Two-bin kanban uses two bins per part. When the front bin empties, it becomes the reorder signal
while the back bin keeps production running.
KANBAN
Empty bin = reorder signal
Two-bin rules
Rule
Why
Bin size covers lead time plus safety
No stockout while refilling
Empty bin goes back or is scanned
The signal
Label every bin with part and quantity
Accurate refills
Review sizes as usage changes
Avoid overstock and shortages
Governing standards: Lean / kanban practice. Editions shown are the latest confirmed as of September 2026. The drawing and the governing standard always take precedence over
this sheet.
torquing any fastener. Verify the current governing standard, project documents, OEM requirements, size, thread, coating and lot certification. To the fullest extent permitted by law, The Fastener App disclaims liability
arising from reliance on this reference.
Fastener Guide reference FG-E4190F · thefastenerapp.com/fastener-guide/inventory-vmi/two-bin-kanban-fastener-replenishment · © The Fastener App. Reference only — verify the current governing standard, drawing and manufacturer data before specifying or installing.

























