CYLINDRICAL DOWEL PIN (DPH)

🔩 Cylindrical Dowel Pin – DPH Type

(Precision-Ground Hardened Alignment Pin for Critical Assemblies)

Neo Fasteners offers high-precision Cylindrical Dowel Pins (DPH Type) manufactured to international standards for reliable and accurate alignment of components in machinery, dies, fixtures, and automotive assemblies. These hardened pins ensure perfect positioning with minimal tolerance and high wear resistance for demanding industrial environments.

🔹 Product Overview:

The DPH dowel pin is a solid cylindrical shaft, fully hardened and ground to close tolerances with chamfered ends. It is primarily used as a press-fit locating element in mechanical assemblies to ensure alignment and to absorb shear loads between connected parts.

🔹 Key Specifications:

• Type: Dowel Pin – Hardened (DPH)
  
  

• Design Standard: DIN 6325 / ISO 8734 / IS 6689 (Part 2)
  
  

• Material Options:
  ▫ High Carbon Steel (EN8 / EN31 – Hardened & Tempered)
  ▫ Stainless Steel (SS 304 / SS 316)
  ▫ Mild Steel (MS – Unhardened on request)
  ▫ Brass / Phosphor Bronze / Nylon (custom)
  
  

• Finish Options:
  ▫ Plain / Bright Ground
  ▫ Black Oxide
  ▫ Zinc Plated (White/Blue)
  ▫ Passivated (for SS)
  ▫ Phosphate Coated (on request)
  
  

• Size Range:
  ▫ Diameter: 1.0 mm to 25 mm
  ▫ Length: 4 mm to 120 mm
  ▫ Tolerance: m6 (standard), h6/h7 available on request
  
  

• Ends:
  ▫ Chamfered or rounded for easy insertion
  ▫ Optional: Center hole or tapped end for extraction
  
  

• Hardness:
  ▫ 55–62 HRC (for hardened steel dowel pins)
  
  

• Certifications:
  ▫ ISO 9001:2015 Certified
  ▫ RoHS Compliant (EU 2011/65/EU & 2015/863)
  
  

🔹 Key Benefits:

✅ High dimensional precision – ensures accurate alignment
✅ Hardened for maximum wear resistance and shear strength
✅ Chamfered ends allow easy and safe installation
✅ Suitable for press-fit or interference-fit mounting
✅ Versatile in material and finish to suit different environments
✅ Custom designs available for OEM and special projects

🔹 Applications:

• Press tool and die sets
  
  

• Automotive gearboxes and crankcases
  
  

• Jigs, fixtures, and gauges
  
  

• Heavy machinery and plant equipment
  
  

• Aerospace & defense structural assemblies
  
  

• CNC machines and mechatronics alignment
  
  

✅ Why Buy from Neo Fasteners?

✔️ ISO 9001:2015 & IAF certified manufacturer
✔️ RoHS compliant – Safe for international markets
✔️ Large inventory and full metric size range
✔️ OEM-specific dowel pins made to drawing/spec
✔️ Export-ready packaging and documentation support
✔️ Competitive pricing and consistent quality for industrial use

Neo Fasteners – Delivering engineered precision with reliability and global compliance.
📞 Contact us today for datasheets, tolerance charts, or a customized quotation.