Central Locking Kit for GMC Sierra: Zinc Plated Steel
This central locking kit for the GMC Sierra 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 warranty claims traced back to a single lot, or inconsistent hardness between lots. Both are specification problems, and both are preventable.
Specification
| Product | Central Locking Kit |
|---|---|
| Vehicle application | GMC Sierra |
| Material / finish | Zinc Plated Steel |
| Typical use | Airport Ground Fleets |
| MOQ | 1,000 pieces per specification |
| Sampling | 10 working days, 3 days per revision |
| Bulk lead time | 15-55 days after approval |
| Compliance | DOT |
| Packing | 50 pieces per inner box, 500 per carton |
Material options
- Powder Coated Steel — preferred when weight matters more than rigidity
- Anodised Aluminium — used when the finish has to hold a coating
- Carbon Fibre Composite — specified where the part sits close to a heat source
- ABS Plastic — chosen where wear resistance comes first
- Tempered Glass — specified where the part sits close to a heat source
Processes available
- gravity casting
- cold forging
- heat treatment
- precision stamping
- powder coating
- anodising
Fitment notes
Check whether the mounting points on your market version match the catalogue drawing — regional variants are the usual cause of a wrong first order.
Where it is used
The specification above is the one most often ordered for airport ground fleets. Related applications include coastal delivery, rural transport, off-road trails, roadside assistance, farm use.
Quality and packing
- In-line inspection with AQL 4.0 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 is the minimum order quantity?
The standard MOQ is 1000 pieces per specification. Mixed sizes inside one shipment are accepted once the total reaches that figure.
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.
How long does sampling take?
Samples leave the factory in 10 working days, and each revision round adds about 3 days once you have seen the first piece.
How is packing specified?
Individual packing, inner box quantity and carton marking are confirmed at quotation stage so the cartons arrive ready for your warehouse.
Send the specification you are working to and we will confirm what we can match, what we would change and why.
