Large thumbwheel for 5/8" nut

thingiverse

The nut would need to be purchased and epoxied to the thumb wheel. I have a huge bevel to hold the epoxy or what ever adhesive you choose. This is not a press fit and requires adhesive. I like the putty type stuff that comes in a plastic tube that you cut off what you need then and kneed together that hardens extremely hard. This was mad for my rifle rest front elevation adjustment to make it easier to turn.