Thumb screw wheel

Configurable thumb screw wheel. Nothing amazing or unique.

Remember the nut size isn't the size of the bolt so you wouldn't tell it you have an M5 nut because not all M5 nuts are the same size. You need to specify the size of the spanner that fits said nut, or measure your nuts with some calipers.

For the hole through the middle you don't want it to be too tight since it's not relying on that to screw on to but if you do make it a nice tight fit then it could act as a sort of locking mechanism to help prevent the thumb wheel rattling loose under vibration. Experiment and see.