ISO 2341 is the standard cited for clevis pins (iso 2341 / din 1444). 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.
ISO 2341 — Scope
ISO 2341 specifies the dimensional requirements for clevis pins (iso 2341 / din 1444).
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 clevis pins (iso 2341 / din 1444) 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 ISO 2341
| Pin diameter d (mm) | Grip length (mm) | Head diameter (mm) | Head height (mm) | Cross hole diameter (mm) | Split pin size | Material | Reference standard |
|---|---|---|---|---|---|---|---|
| 4 | 12 | 7 | 2.5 | 1.6 | 1.6 x 16 | Steel 4.6 / A2 | ISO 2341 |
| 5 | 16 | 9 | 3.0 | 1.6 | 1.6 x 20 | Steel 4.6 / A2 | ISO 2341 |
| 6 | 20 | 10 | 3.5 | 2.0 | 2 x 20 | Steel 4.6 / A2 | ISO 2341 |
| 8 | 25 | 14 | 4.0 | 2.5 | 2.5 x 25 | Steel 4.6 / A2 | ISO 2341 |
| 10 | 32 | 18 | 4.5 | 3.2 | 3.2 x 32 | Steel 4.6 / A2 | ISO 2341 |
| 12 | 40 | 20 | 5.5 | 3.2 | 3.2 x 36 | Steel 4.6 | ISO 2341 |
| 16 | 50 | 27 | 7.0 | 4.0 | 4 x 40 | Steel 4.6 | ISO 2341 |
Companion Standards
ISO 2341 controls only the geometry of clevis pins (iso 2341 / din 1444). 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 ISO 2341
Choose ISO 2341 for international engineering work and OEM supply where ISO standards are the contractual reference. It is the default modern specification for clevis pins (iso 2341 / din 1444).
