DIN PRECISION PINS
DOWEL PINS & RETAINING RINGS
DIN 1 | DIN 7 | DIN 6325 | DIN 1481 | DIN 471 | DIN 472
Manufacturer & Exporter – Super Industries India
IMPORTANCE: HIGH VALUE PAGE
1. Introduction to DIN PRECISION PINS
Precision pins and retaining rings are critical alignment and locking components used in machinery, gearboxes, tooling, jigs, and heavy equipment.
At Super Industries India, we manufacture DIN-compliant precision pins with tight tolerances, suitable for OEMs, machine builders, and export markets.
Super Industries
Global Manufacturer of Heavy & Custom Engineered Fasteners & Flanges
2. Why Precision Pins Matter
✔ Maintain alignment
✔ Control shear loads
✔ Enable repeatable assembly
✔ Prevent axial movement
3. DIN 1 – Taper Pins
Overview
DIN 1 taper pins provide self-locking alignment due to their tapered profile.
Applications
- Shafts & hubs
- Couplings
- Machine tools
4. DIN 7 – Parallel Dowel Pins
Overview
DIN 7 dowel pins are used for accurate positioning.
Features
✔ Ground finish
✔ High dimensional accuracy
5. DIN 6325 – Hardened Dowel Pins
CRITICAL SUB-SECTION
Properties
- Hardened & ground
- H6 tolerance
Uses
- Die sets
- CNC fixtures
- Robotics
Super Industries
Global Manufacturer of Heavy & Custom Engineered Fasteners & Flanges
6. DIN 1481 – Spring Pins (Slotted Pins)
Overview
DIN 1481 pins provide elastic locking.
Advantages
✔ Absorbs vibration
✔ No reaming required
7. DIN 471 – External Circlips
Function
Locks components on shafts.
8. DIN 472 – Internal Circlips
Function
Locks components inside bores.
9. Materials
- Carbon steel
- Stainless steel
- Alloy steel
10. Heat Treatment
- Case hardened
- Through hardened
11. Surface Finish
- Plain
- Zinc plated
- Black oxide
12. Tolerance Classes
| Pin Type | Tolerance |
|---|---|
| DIN 6325 | h6 |
| DIN 7 | m6 |
13. Manufacturing Process
✔ Centerless grinding
✔ Heat treatment
✔ 100% inspection
14. Quality Control
- Plug gauges
- Micrometer inspection
- Hardness testing
15. Export Packing
- Oil-coated
- VCI packaging
- Labelled cartons
16. DIN Pins vs Bolted Joints
| Feature | Pins | Bolts |
|---|---|---|
| Alignment | Excellent | Moderate |
| Reusability | High | Limited |
17. Industries Served
- Machine tools
- Automation
- Defense
- Automotive
18. Why Super Industries India?
✔ Precision manufacturing
✔ DIN compliance
✔ Export documentation
19. FAQs
Q: Are pins reusable?
Yes, depending on application.
20. CTA
📩 Contact us for precision pin drawings & samples.