Direct answer: Zhengna Technology manufactures automotive interior zinc-nickel stamped clips from buyer drawings, with attention to spring force, burr direction, coating adhesion, corrosion resistance, and assembly repeatability. These clips should be sourced as functional automotive hardware, not simple commodity fasteners.
| Buyer check | Why it matters |
|---|---|
| Spring force range | Controls retention performance and assembly feel. |
| Burr direction | Prevents trim damage, operator injury, and unstable seating. |
| Zinc-nickel coating | Supports corrosion resistance when coating thickness and adhesion are controlled. |
| Salt spray target | Connects surface treatment to the buyer’s validation expectation. |
| Packaging method | Prevents clip deformation, coating scratches, and mixed lots. |
Zinc-nickel coating can improve corrosion resistance when coating thickness, adhesion, and salt spray requirements are properly controlled.
The main risks are unstable spring force, burrs, coating defects, deformation, and poor fit in the final interior assembly.
Include material, hardness, coating, spring force target, burr limit, critical dimensions, salt spray requirement, and packaging method.
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