Lug Nut for Toyota Corolla: Zinc Plated Steel
This lug nut for the Toyota Corolla is specified around zinc plated steel, which decides how it behaves in service far more than the part name does. We build to a written specification — base material, dimensions, finish and packing — and hold that specification on file so every reorder reproduces the approved piece.
The usual reason a programme changes supplier is not unit price. It is a supplier who changed material without saying so, or a supplier who changed material without saying so. Both are specification problems, and both are preventable.
Specification
| Product | Lug Nut |
|---|---|
| Vehicle application | Toyota Corolla |
| Material / finish | Zinc Plated Steel |
| Typical use | Night Riding |
| MOQ | 200 pieces per specification |
| Sampling | 10 working days, 5 days per revision |
| Bulk lead time | 20-40 days after approval |
| Compliance | SAE J431 |
| Packing | 20 pieces per inner box, 200 per carton |
Material options
- Zinc Plated Steel — specified where the part sits close to a heat source
- Chromed Steel — preferred when weight matters more than rigidity
- Reinforced Nylon — chosen where wear resistance comes first
- Polypropylene — specified where the part sits close to a heat source
- Tempered Glass — used when the finish has to hold a coating
Processes available
- ultrasonic cleaning
- precision stamping
- sintering
- injection moulding
- electroplating
- cold forging
Fitment notes
Confirm the fitment against the VIN or the frame number before ordering; two model years often share a name and not a part.
Where it is used
The specification above is the one most often ordered for night riding. Related applications include rental fleets, security patrols, motocross, rural transport, track days.
Quality and packing
- In-line inspection with AQL 2.5 sampling on every lot.
- Dimensional report issued against the approved drawing.
- Carton marking and barcode to your specification.
- Golden sample retained at the factory as the reorder reference.
Questions buyers ask
What happens if a lot fails inspection?
The lot is re-inspected against the golden sample, and replacement pieces ship on the next available booking at our cost.
Can the specification be held on file?
Yes. Once approved, the specification is recorded against your part number so a reorder reproduces the SAE J431-compliant build instead of a fresh interpretation.
Can you match an existing sample?
Send a sample and we will reverse-engineer the specification, then produce a counter sample for approval before any bulk starts.
What testing is included?
Standard lots ship with dimensional and hardness reports. SAE J431 documentation is issued with the shipment when your market requires it.
Send the specification you are working to and we will confirm what we can match, what we would change and why.
