Get pixel coordinates for bounding box projected onto USceneCaptureComponent2D

I need to get screen space coordinates for a bounding box projected onto a USceneCaptureComponent2D, which I’m using for screen capture. Is there a way to do this?

I know there is a way to do this using the HUD, but I’m using USceneCaptureComponent2D to take screenshots in a different resolution from the HUD, using a program that communicates with UE4 over a socket.

Thanks