Both the video and the frame install instructions shows the aluminium bars with holes in them. Some of those holes have some kind of a nut inserted in them. Probably where the screws attach.
I can’t find those nuts in the BOM list. McMaster probably sells them but I need the exact size to match the screws (which I will also buy from mcmaster). Would you have the part number ?
Have you checked this BOM: Bill of Materials question for current PFC v2.0 makers