Made them thicker
I needed a wall bracket so I made one 123D Design.
Use a piece of 55mm PVC pipe cut to the size you need. Add 40mm to the max width of your widest spool.
Put on on the wall mark the holes, Drill, Raw plug. Screw it on then do the other one. Slide pipe into spool and drop it on. Hole centre to hole centre is 77.5mm ish :)