# secondaryAxis

> The joint's secondary axis.

## Definition

* **Type:** Property
* **Namespace:** [UnityEngine](/engine/6000.3/script-reference/unityengine.md)
* **Assembly:** UnityEngine.PhysicsModule

```csharp
public Vector3 secondaryAxis { get; set; }
```

### Remarks

Together, secondary and primary axes define the joint's coordinate space.