Direct answer: Zhengna Technology manufactures automotive inner door handle pivot pins from buyer drawings, using machining, finishing, plating, and inspection controls. Buyers should check pin diameter, surface finish, corrosion resistance, fit with mating parts, and batch traceability before approval.
| Buyer check | Why it matters |
|---|---|
| Pin diameter and tolerance | Controls rotation, clearance, noise, and assembly fit. |
| Material and hardness | Affects wear resistance, strength, and machining stability. |
| Plating or coating | Supports corrosion resistance and salt spray targets. |
| Surface finish | Influences friction, noise, and long-term wear. |
| Inspection method | Confirms functional dimensions before shipment. |
Diameter tolerance, surface finish, plating thickness, wear behavior, and fit with the handle assembly are usually the most important points.
Yes. Zhengna Technology can coordinate plating and inspection planning around buyer-defined salt spray and corrosion requirements.
Send drawings, material, tolerance, finish, salt spray target, annual volume, critical dimensions, and packaging requirements.
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