---
title: PhysicsFixedJoint
framework: realitykit
role: symbol
role_heading: Structure
path: realitykit/physicsfixedjoint
---

# PhysicsFixedJoint

A joint that rigidly connects two entity pins, with zero degrees of freedom.

## Declaration

```swift
struct PhysicsFixedJoint
```

## Overview

Overview A fixed joint connects two GeometricPin instances, pin0 and pin1, so that their poses coincide. There are zero degrees of rotational or linear freedom between the two pins.

## Topics

### Initializers

- [init(pin0:pin1:)](realitykit/physicsfixedjoint/init(pin0:pin1:).md)

### Instance Properties

- [checksForInternalCollisions](realitykit/physicsfixedjoint/checksforinternalcollisions.md)

## Relationships

### Conforms To

- [Equatable](swift/equatable.md)
- [PhysicsJoint](realitykit/physicsjoint.md)

## See Also

### Built-in joint types

- [PhysicsRevoluteJoint](realitykit/physicsrevolutejoint.md)
- [PhysicsPrismaticJoint](realitykit/physicsprismaticjoint.md)
- [PhysicsSphericalJoint](realitykit/physicssphericaljoint.md)
- [PhysicsCustomJoint](realitykit/physicscustomjoint.md)
- [PhysicsDistanceJoint](realitykit/physicsdistancejoint.md)
- [PhysicsJoints](realitykit/physicsjoints.md)