Engineering Tools
Reference data for specifying and sourcing fasteners correctly — the numbers a procurement or design engineer actually needs.
DIN 471 — External retaining ring (shaft circlip)
Also referenced as: ISO 464
Approximated dimensionsSnap ring that fits into a groove machined on a shaft, retaining a bearing/gear/component axially. Not a threaded fastener — installed with circlip pliers.
Illustrative — not to scale
| Shaft diameter | Ring thickness (s) | Groove diameter (approx.) |
|---|---|---|
| 6 mm | 0.7 mm | 5.7 mm |
| 8 mm | 0.8 mm | 7.6 mm |
| 10 mm | 1.0 mm | 9.6 mm |
| 12 mm | 1.0 mm | 11.5 mm |
| 16 mm | 1.0 mm | 15.2 mm |
| 20 mm | 1.2 mm | 19.0 mm |
Need DIN 471 fasteners sourced?
Post your requirement ›