I'm currently working on a project with some holes in order to screw a vial set I have into. I generated a test thread to see if I got the size right using the scad file from this project [https://www.printables.com/model/94761-nut-job-nut-bolt-washer-and-threaded-rod-factory/files](https://www.printables.com/model/94761-nut-job-nut-bolt-washer-and-threaded-rod-factory/files)

I used the following options in the scad file under the nut options:

    nut_type                    = "normal";//[normal,wingnut]
    //Distance between flats for the hex nut
    nut_diameter    = 30;
    //Height of the nut
    nut_height      = 7; 
    //Outer diameter of the bolt thread to match (usually set about 1mm larger than bolt diameter to allow easy fit - adjust to personal preferences) 
    nut_thread_outer_diameter     = 15.75; 
    //Thread step or Pitch (2mm works well for most applications ref. ISO262: M3=0.5,M4=0.7,M5=0.8,M6=1,M8=1.25,M10=1.5)
    nut_thread_step    = 1.5;
    //Step shape degrees (45 degrees is optimised for most printers ref. ISO262: 30 degrees)
    nut_step_shape_degrees = 45;

And the nut fits the bolt on the top of the vial well, but I am having problems translating these options to freecad, the biggest problem being that the hole tool seems to not have any way to set the diameter of the hole. When I print it out what's shown in the above pictures simply comes out too small for the bolt to ever fit into.

How do I increase the diameter of a threaded hole made using the hole tool?