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Case Study: Lug Nut Supply for a regional distributor in Southern Africa

Source:Case / Time:2026-09-18

Lug Nut for A regional distributor in Southern Africa

A regional distributor came to us with a lug nut programme for Southern Africa. The brief was ordinary and unforgiving at the same time: a fixed launch window, a landed cost that had to survive freight and duty, and a part that had to match an existing sample. This case records what was specified, what went wrong in sampling and how the bulk order landed.

The starting point

  • Packing that arrived crushed at the port
  • Warranty claims traced back to a single lot
  • Documentation that arrived after the container shipped

Lug Nut case study

What was specified

PartLug Nut
ClientA regional distributor
MarketSouthern Africa
Volume5,000 pieces across 6 specifications
Base materialNatural Rubber
Sampling rounds4
Delivery window4 weeks from PO to ex-factory
ComplianceISO 9001

How it was resolved

  1. The specification was rebuilt around Natural Rubber and the tolerance locked before bulk.
  2. A pre-production sample was approved and kept as the golden reference.
  3. Production ran with in-line inspection and a mid-run photo report.
  4. Cartons were packed to the client's own barcode and ratio specification.
  5. Documentation shipped with the goods instead of after them.

Lug Nut production run

Result

  • 5,000 pieces delivered inside the 4-week window.
  • Unit cost held within 1.5% of the original quotation.
  • Inspection-related rejection stayed under 2.0%.
  • The specification is on file, so reorders reproduce the approved sample.

What we would repeat

Lock the material standard before sampling. Once the base changes, every downstream approval has to be redone and the calendar slips.

Planning something similar?

Send the part number, the annual volume and the target market, and we will come back with a specification and a sampling plan.

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