DIN 1473 is the standard cited for grooved pins (din 1471–1474). This page sets out what the standard controls for this part, reproduces the dimensional table supplied against it, and notes the related designations referenced on drawings.
DIN 1473 — Scope
DIN 1473 specifies the dimensional requirements for grooved pins (din 1471–1474).
Material, surface condition and any performance rating are set by separate documents specific to this part family — ISO 898-1 and ISO 898-2, which govern bolt and nut property classes, do not apply here.
Tolerance & Product Grades
Tolerances for grooved pins (din 1471–1474) are given as limits on the individual dimensions in the table rather than as a fastener product grade.
Where a general-tolerance class is cited on the drawing instead, it applies to the dimensions not otherwise toleranced.
Dimensions Specified by DIN 1473
| Nominal diameter d (mm) | Hole diameter H11 (mm) | Length L (mm) | Groove form | Double shear (kN) | Hole preparation | Material | Reference standard |
|---|---|---|---|---|---|---|---|
| 2 | 2.0 | 10 | Full-length parallel | 2.6 | Drilled H11 | Steel, case hardened | DIN 1473 |
| 3 | 3.0 | 16 | Full-length parallel | 5.9 | Drilled H11 | Steel, case hardened | DIN 1473 |
| 4 | 4.0 | 20 | Full-length parallel | 10.5 | Drilled H11 | Steel, case hardened | DIN 1473 |
| 5 | 5.0 | 26 | Full-length parallel | 16.4 | Drilled H11 | Steel, case hardened | DIN 1473 |
| 6 | 6.0 | 32 | Full-length parallel | 23.6 | Drilled H11 | Steel, case hardened | DIN 1473 |
| 8 | 8.0 | 40 | Full-length parallel | 42.0 | Drilled H11 | Steel, case hardened | DIN 1473 |
| 10 | 10.0 | 50 | Full-length parallel | 65.6 | Drilled H11 | Steel, case hardened | DIN 1473 |
Companion Standards
DIN 1473 controls only the geometry of grooved pins (din 1471–1474). Surface finish is governed by separate finish standards (for example ISO 4042 for electroplating), and corrosion testing by ISO 9227 (neutral salt spray). Mechanical performance is set by the standards specific to this part family, not by ISO 898-1 or ISO 898-2, which apply to bolts, screws and nuts.
When to Specify DIN 1473
DIN 1473 is still widely used in European mechanical engineering and as a cross-reference on legacy drawings; its ISO equivalent is preferred for new designs.
