Spring (Roll) Pins manufactured to DIN 1481 follow a specific scope. This page summarizes that scope, lists every dimension the standard fixes, and points to the most common cross-references.
DIN 1481 — Scope
DIN 1481 specifies the dimensions and tolerances of spring (roll) pins. Material, property class, surface finish and packaging are governed by separate documents in the same standards family (for example ISO 898-1 for the mechanical property classes of bolts and screws).
Tolerance & Product Grades
DIN 1481, alongside the related ISO 8748 / DIN 1481 entries on this site, specifies product grades (typically A or B for fine work and C for general engineering) and tolerance classes for the controlling dimensions. Choose the grade against the precision your application requires.
Dimensions Specified by DIN 1481
| Nominal diameter (mm) | Recommended hole (mm) | Common length range (mm) | End chamfer (mm) | Material | Reference standard |
|---|---|---|---|---|---|
| 1.0 | 1.0 | 4~10 | 0.3 | Spring steel | ISO 8748 / DIN 1481 |
| 1.2 | 1.2 | 4~12 | 0.3 | Spring steel | ISO 8748 / DIN 1481 |
| 1.5 | 1.5 | 4~16 | 0.3 | Spring steel | ISO 8748 / DIN 1481 |
| 2.0 | 2.0 | 6~20 | 0.5 | Spring steel | ISO 8748 / DIN 1481 |
| 2.5 | 2.5 | 6~24 | 0.5 | Spring steel | ISO 8748 / DIN 1481 |
| 3.0 | 3.0 | 8~30 | 0.5 | Spring steel | ISO 8748 / DIN 1481 |
| 4.0 | 4.0 | 8~40 | 0.8 | Spring steel | ISO 8748 / DIN 1481 |
| 5.0 | 5.0 | 10~50 | 0.8 | Spring steel | ISO 8748 / DIN 1481 |
| 6.0 | 6.0 | 12~60 | 1.0 | Spring steel | ISO 8748 / DIN 1481 |
| 8.0 | 8.0 | 16~80 | 1.0 | Spring steel | ISO 8748 / DIN 1481 |
| 10.0 | 10.0 | 20~100 | 1.5 | Spring steel | ISO 8748 / DIN 1481 |
| 12.0 | 12.0 | 25~120 | 1.5 | Spring steel | ISO 8748 / DIN 1481 |
| 13.0 | 13.0 | 25~120 | 1.5 | Spring steel | ISO 8748 / DIN 1481 |
| 14.0 | 14.0 | 30~160 | 2.0 | Spring steel | ISO 8748 / DIN 1481 |
| 16.0 | 16.0 | 30~160 | 2.0 | Spring steel | ISO 8748 / DIN 1481 |
| 20.0 | 20.0 | 40~200 | 2.0 | Spring steel | ISO 8748 / DIN 1481 |
Equivalent Standards
Where direct equivalents exist (ISO ↔ DIN, ISO ↔ ASME), they are listed on the parent Spring (Roll) Pins page. Always confirm against the dimensions on this page, since some "equivalent" standards differ in tolerances and head geometry.
Companion Standards
DIN 1481 controls only the geometry of spring (roll) pins. The mechanical strength is set by ISO 898-1 (bolts and screws) or ISO 898-2 (nuts); the surface finish is governed by separate finish standards (e.g. ISO 4042 for electroplating). For corrosion testing, the relevant document is ISO 9227 (neutral salt spray).