Direct answer: Zhengna Technology manufactures Dacromet coated automotive metal clips for interior fastening applications where corrosion resistance, spring force, burr control, and coating stability must be controlled together.

| Buyer check | Why it matters |
|---|---|
| Material and hardness | Controls clip force, forming stability, and durability. |
| Dacromet coating | Improves corrosion resistance when thickness and adhesion are controlled. |
| Burr and edge condition | Reduces trim damage and assembly risk. |
| Functional fit | Confirms clip retention in the real mating part. |
| Traceability | Links material, stamping, coating, and inspection records. |
Dacromet coating can support corrosion resistance when coating adhesion, thickness, and post-coating fit are properly controlled.
Yes. Coating can affect thickness, friction, fit, and spring force, so coated clips should be tested after finishing.
Buyers should inspect spring force, coating appearance, burr direction, critical dimensions, and packaging condition.