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# PhysicsFixedJoint

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

```
struct PhysicsFixedJoint
```

## Overview

A fixed joint connects two [`GeometricPin`](/documentation/RealityKit/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: GeometricPin, pin1: GeometricPin)`](/documentation/RealityKit/PhysicsFixedJoint/init(pin0:pin1:))

Creates a new fixed joint.

### Instance Properties

[`let checksForInternalCollisions: Bool`](/documentation/RealityKit/PhysicsFixedJoint/checksForInternalCollisions)

A Boolean that indicates whether the joint checks and reports collisions between the two entity instances.

## Relationships

### Conforms To

[`Equatable`](/documentation/Swift/Equatable)

[`PhysicsJoint`](/documentation/RealityKit/PhysicsJoint)

---

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