DIN 7343 — Standard-duty coiled spring pins
Data sheet · Revision 01 · 2026-09-17
Selected dimensions
| Nominal d min (mm) | D min. min (mm) | D max. max (mm) | B max. max (mm) | C ref. ref (mm) | Hole min. min (mm) | Hole max. max (mm) |
|---|---|---|---|---|---|---|
| 1 | 1.05 | 1.15 | 0.95 | 0.3 | 1 | 1.04 |
| 1.5 | 1.62 | 1.73 | 1.4 | 0.5 | 1.5 | 1.6 |
| 2 | 2.13 | 2.25 | 1.9 | 0.7 | 2 | 2.1 |
| 2.5 | 2.65 | 2.78 | 2.4 | 0.7 | 2.5 | 2.6 |
| 3 | 3.15 | 3.3 | 2.9 | 0.9 | 3 | 3.1 |
| 3.5 | 3.67 | 3.84 | 3.4 | 1 | 3.5 | 3.62 |
| 4 | 4.2 | 4.4 | 3.9 | 1.1 | 4 | 4.12 |
| 5 | 5.25 | 5.5 | 4.85 | 1.3 | 5 | 5.12 |
| 6 | 6.25 | 6.5 | 5.85 | 1.5 | 6 | 6.15 |
| 8 | 8.3 | 8.63 | 7.8 | 2 | 8 | 8.15 |
| 10 | 10.35 | 10.8 | 9.75 | 2.5 | 10 | 10.15 |
| 12 | 12.4 | 12.85 | 11.7 | 3 | 12 | 12.18 |
| 14 | 14.45 | 14.95 | 13.6 | 3.5 | 14 | 14.18 |
| 16 | 16.45 | 17 | 15.6 | 4 | 16 | 16.18 |
D: outside diameter; B: chamfer diameter; C: chamfer length, reference only; hole: recommended installation-hole limits. L: length (not tabulated).
Notes
Scope: Dimensional series: ISO 8750, standard duty. Indexed under DIN 7343; full equivalence is not asserted.
Scope: Dimensions apply before plating. Swaged chamfer at both ends. Hole dimensions are recommendations.