Thumb Wheel for a 1/4 - 20 Nut or Bolt

This is a thumb wheel for 1/4 - 20 nuts and bolts. The thumb wheel is the same whether you make it to fit the nut or the bolt, but the cap for the nut is a little shallower (the nut is thicker than the bolt head) and it has a through-hole so that the threaded rod or bolt can pass through the thumb wheel.

The bolt head or nut just barely fits in the hexagonal pocket. You will have to tap it with a hammer to get it started. The hardware will pull itself through if you tighten it temporarily in