public int renderQueue { get; set; }

Use this property to override the render queue of the material, to change when Unity draws GameObjects that use the material.

Use a value of '-1' to use the default render queue value from the shader.

Note: When Unity runs in batch mode, Scriptable Render Pipelines (SRPs) are only loaded the first time something renders. Loading an SRP modifies the subshader selected for a given material, which can change the value of this property.

Additional Resources: RenderQueue, Render queues and sorting behaviours in the Built-in Render Pipeline.