
Press-fit Locating Pin
Precision assembly requires components that stay exactly where they are placed, which is why we specialize in the press-fit locating pin. This high-precision cylindrical pin is engineered with exceptional end-face flatness and perpendicularity to ensure a stable, permanent fit into various mechanical housings. Since 2011, Kunshan Haizhijie has utilized TSUGAMI CNC Swiss-type lathes to manufacture the press-fit locating pin, maintaining micron-level tolerances (±0.001mm) on the interference diameter. This extreme precision ensures that once the press-fit locating pin is installed, it remains firmly fixed without loosening, even under high-vibration conditions common in automotive and robotics applications. Our 15 years of industry expertise allows us to provide pins with complex stepped, chamfered, or slotted structures that ensure reliable positioning every time.
We are a source factory that upholds a "Quality at the Core" business philosophy. Every press-fit locating pin we produce undergoes full-process quality control, from pre-production technical reviews to 100% final inspections. We use only high-grade materials like 304/316 stainless steel, brass, and carbon steel, providing full material traceability for our global clients. Our experience as a supplier for domestic NEV and medical device manufacturers has refined our ability to deliver highly consistent batches with zero defects. Partnering with us provides you with a stable, high-capacity supply chain, transparent production updates via photo and video, and a dedicated after-sales team that provides rapid response to all technical requirements.

Specifications
| Item | Specification |
|---|---|
| Diameter Specs | Φ1 to Φ30; non-standard sizes available. |
| Length Range | 3 mm to 80 mm; processed to technical drawings. |
| Structure | Stepped, chamfered, slotted, or grooved for locating features. |
| Materials | 304/316 Stainless Steel, Brass C3604, Carbon Steel. |
| Surface Treatment | Passivation, Nickel/Zinc Plating, Blackening. |
Application Fields
- Automotive Fabrication: Locating pins for high-voltage connectors and internal modules.
- Medical Instruments: Precision positioning pins for surgical and diagnostic equipment.
- Electronic Communications: Structural pins for 5G base stations and smart terminals.
- Mold & Die Industry: High-accuracy locating pins for precision tooling and fixtures.
Customization Capabilities
We offer complete OEM/ODM customization for the press-fit locating pin. Our engineers work one-on-one with you to optimize the pin's chamfer and lead-in angles to ensure smooth press-fit installation on your automated assembly lines. Prototyping is available within 7 days of design confirmation. We support MOQ starting from 500 pieces for customized non-standard parts.
Packaging & Shipping
We use professional export packaging: parts are coated with anti-rust protection and packed in bubble bags or trays within five-layer corrugated boxes. For international delivery, we offer EXW, FOB, and DDP options. We accept USD, EUR, and RMB payments and provide real-time updates throughout the manufacturing cycle.
FAQ
Q: How do you ensure the pin doesn't loosen?
A: We achieve this through micron-level tolerance control on the interference diameter.
Q: Can you provide a prototype before mass production?
A: Yes, we provide samples for your assembly testing and approval.
Q: What is the monthly capacity?
A: We can provide stable delivery for orders ranging from 500 to 100,000+ pieces.
Q: Are your pins burr-free?
A: Yes, we use high-precision machining and polishing to ensure smooth, burr-free surfaces.
Q: Do you offer a warranty?
A: We provide a 1-year warranty against any manufacturing defects.
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