In modern manufacturing, non-standard hardware accessories are becoming the key to breaking through engineering bottlenecks. Precision Steel Locating Pins from Ningbo Dongpei Machinery Co., Ltd. provide reliable solutions for complex industrial systems with excellent durability and precise positioning capabilities.

Why Choose Dongpei Precision Steel Locating Pins?
| Feature | Benefit |
|---|---|
| High-performance steel | Excellent wear resistance and structural strength |
| Innovative internal thread design | Significantly improves installation stability |
| Prevents loosening | Effective in high-intensity operations |
| Simple cylindrical shape | Dark metal texture, modern industrial aesthetics |
| Full-process quality control | Factory audits ensure product quality |
| Deep customization | Materials, specifications, surface treatments |
Key Specifications
| Parameter | Detail |
|---|---|
| Material | High-carbon chromium bearing steel (SUJ2/SAE 52100) or tool steel alloys |
| Hardness | Rockwell C 60-64 after heat treatment |
| Diameter Tolerance | ±0.005mm (standard) to ±0.001mm (ultra precision) |
| Surface Finish | Ra 0.4μm (standard) to Ra 0.1μm (ultra precision) |
| Key benefit | Prevents loosening, ensures accurate alignment |
| Customization | Materials, specifications, surface treatments |
Core Applications
This industrial locating pin for precision assembly is ideal for:
| Industry | Application |
|---|---|
| Automotive Manufacturing | Body-in-white assembly, fixture alignment |
| Aerospace & Defense | Critical component fabrication, thermal cycling environments |
| Medical Device Assembly | Sterile assembly, ISO 13485 compliant |
| Electronics & Semiconductor | Non-magnetic, anti-static applications |
| Heavy Machinery | Mining equipment, wind power tooling |
Key Advantages
| Advantage | Impact |
|---|---|
| Excellent wear resistance | 37% longer service life in abrasive environments |
| Internal thread design | Prevents loosening in high-intensity operations |
| Accurate alignment | Reduces positioning errors by up to 93% |
| Dimensional stability | 68% less thermal drift than industry averages |
| Customizable | Materials, specs, surface treatments |
Technical Excellence
This custom steel locating pin manufacturer offers:
- Rigorous 7-Stage Manufacturing Protocol – From material certification to superfinishing and metrology verification.
- High-Performance Steel Construction – Provides excellent wear resistance and structural strength to withstand harsh working conditions.
- Precise Positioning Capability – Ensures accurate alignment between components, fundamentally avoiding equipment stability problems caused by misalignment.
- Full-Process Quality Control – 100% inspection with coordinate measuring machines and complete lot traceability.
Surface Treatment Options
| Coating | Best For |
|---|---|
| Black Oxide | General corrosion resistance and lubricity |
| Hard Chrome Plating | Extreme wear resistance (>70 HRC equivalent) |
| Titanium Nitride (TiN) | Reduced friction and galling prevention |
| Phosphate Coating | Oil retention for long-term lubrication |
Selection Guide
| Criteria | Recommendation |
|---|---|
| Diameter Selection | 60-70% of the engagement hole depth |
| Interference Fit | 0.002-0.005mm per 25mm diameter |
| Length Ratio | 1.5-2.0 times the pin diameter |
| Clearance Holes | 0.02-0.05mm clearance |
ROI Benefits
| Metric | Improvement |
|---|---|
| Scrap Reduction | 25-40% decrease |
| Setup Time Reduction | 30-50% faster changeovers |
| Tooling Life Extension | 60-80% longer service life |
| Quality Improvement | 55% reduction in positional variation |

FAQ
Q1: What are precision steel locating pins used for?
A: Precision steel locating pins are cylindrical alignment devices that ensure consistent positioning of workpieces during machining, welding, assembly, and inspection operations—fundamentally avoiding equipment stability problems caused by misalignment.
Q2: What materials are used?
A: These high strength locating pin for industrial use are made from high-carbon chromium bearing steel (SUJ2/SAE 52100) or tool steel alloys, with Rockwell C 60-64 hardness.
Q3: What tolerances can you achieve?
A: We offer standard precision (±0.005mm), high precision (±0.002mm), and ultra precision (±0.001mm) tolerances.
Q4: What is the advantage of the internal thread design?
A: The innovative internal thread design significantly improves installation stability and effectively prevents the risk of loosening in high-intensity operations.
Q5: What coatings are available?
A: Black oxide, hard chrome plating, titanium nitride (TiN), and phosphate coating for enhanced performance in specific environments.
Q6: What certifications do you hold?
A: We maintain ISO 9001:2015, IATF 16949 compliance, ISO 14001 environmental management, and RoHS/REACH compliance.
Q7: What is the lead time for custom pins?
A: Rapid prototyping: 5-7 days for custom geometries. Volume manufacturing capacity: 500,000+ pins monthly.
Q8: How do I get a quote?
A: Contact Dongpei’s professional team with your specifications and requirements.
Get a Quote
Ready to improve your assembly system precision with high-quality locating pins? Contact Ningbo Dongpei Machinery Co., Ltd. today.
Contact: Jackey Shen
Phone/Whatsapp: +86-13208095582
Email: [email protected]

