# Hinge joint definition reference for the Physics Core 2D API > Explore the properties you can use to configure a hinge joint in the Editor. > **Note:** > > This documentation is about writing C# scripts using the `Unity.U2D.Physics` API. To use 2D physics in the Unity Editor using components like the Rigidbody 2D component, refer to [2D physics](/engine/6000.6/manual/unity2d/2d-physics.md.md) instead. Explore the properties you can use to configure a Physics Core 2D API hinge joint in the Unity Editor. A hinge joint places two bodies at the same location, and allows the second body to rotate while connected to the first. | **Property** | **Sub-property** | **Description** | | ----------------------- | ---------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | **Local Anchor A** | N/A | Sets where one end of the joint connects to the first body. | | N/A | **Position** | Sets the position where the end of the joint connects, relative to the position of the first body. | | N/A | **Rotation** | Sets the rotation of the anchor in degrees. | | **Local Anchor B** | N/A | Sets where the other end of the joint connects to the second body. | | N/A | **Position** | Sets the position where the end of the joint connects, relative to the position of the second body. | | N/A | **Rotation** | Sets the rotation of the anchor in degrees. | | **Enable Spring** | N/A | Enables **Spring Target Angle**, **Spring Frequency** and **Spring Damping**. The joint acts as a spring, so it stretches and compresses to try to make the angles of the two bodies the same. The strength of the pull is proportional to the current angle between the bodies. | | **Spring Target Angle** | N/A | Sets the target angle in degrees. | | **Spring Frequency** | N/A | Sets the stiffness of the spring in Hertz (cycles per second). A higher value makes the spring less stiff. The default is 0. | | **Spring Damping** | N/A | Sets how quickly the spring stops pulling or pushing. A higher value makes the spring settle more quickly. The default is 0. | | **Enable Motor** | N/A | Enables **Motor Speed** and **Max Motor Torque**, which make the joint act as a motor to rotate the second body. | | **Motor Speed** | N/A | Sets the target rotation, in degrees per second. | | **Max Motor Torque** | N/A | Sets the maximum force that the motor applies to reach the target rotation, in newtons. | | **Enable Limit** | N/A | Enables **Lower Angle Limit** and **Upper Angle Limit**, which limit the angles of the two connected bodies. | | **Lower Angle Limit** | N/A | Sets the minimum angle in degrees. The default is 0, which means no limit. | | **Upper Angle Limit** | N/A | Sets the maximum angle in degrees. The default is 0, which means no limit. | | **Force Threshold** | N/A | Sets the amount of linear force that creates an `OnJointThreshold2D` event. | | **Torque Threshold** | N/A | Sets the amount of rotational force that creates an `OnJointThreshold2D` event. | | **Tuning Frequency** | N/A | Sets the overall stiffness of the joint in Hertz (cycles per second). A higher value makes the joint less stiff. | | **Tuning Damping** | N/A | Sets how quickly overall the joint stops pulling or pushing. A higher value makes the joint settle more quickly. | | **Draw Scale** | N/A | Scales the joint Unity draws as a debug visualization. For more information, refer to [Draw a debug visualization of objects](/engine/6000.6/manual/unity2d/2d-physics-api/create-objects/debug-drawing.md). | | **Collide Connected** | N/A | Enables the shapes creating collision or trigger events when they come into contact with each other. For more information, refer to [Collisions and interactions in the Physics Core 2D API](/engine/6000.6/manual/unity2d/2d-physics-api/interactions.md). | | **World Drawing** | N/A | Draws the joint when Unity draws the debug visualization of the world. For more information, refer to [Draw a debug visualization of objects](/engine/6000.6/manual/unity2d/2d-physics-api/create-objects/debug-drawing.md). | ## Additional resources * [`PhysicsHingeJointDefinition`](/engine/6000.6/script-reference/unity/u2d/physics/physicshingejointdefinition.md) * [Configure Physics Core 2D API scenes with definitions](/engine/6000.6/manual/unity2d/2d-physics-api/properties/definitions.md) * [Configure global Physics Core 2D API settings](/engine/6000.6/manual/unity2d/2d-physics-api/properties/class-physics-core-settings2d.md)