[glend (Glen)]

Thanks, that explains it. I assume they are PCB spacers. I will make something from stuff I have. Getting there I believe. Ignore the sloppy metal work, no vise or things to make the job easier, it fits and no one is ever going to see the cutout and bends. This is a temporary placement to check clearances and the screw down of the finger. I think I will just use metal screws and that way don't have to worry about earthing the finger.
Progress photos attached.