Where's a good place to find a screw and matching threads?

Hi Eric,

These are just some standard places that I use that are free to get CAD files from.

3D ContentCentral

https://www.mcmaster.com This one is very good.......

Download free 3D CAD Models from 2D and 3D electronic catalogs | TraceParts 

There are loads of others, but I really depends on what you require. I hope this helps you out.............

Dave.

Eric,

If it is an existing hole, are you looking @ cosmetic threads? If so you should be using the hole wizard and turn cosmetic threads on.

If you are looking to model some threads, insert>feature>threads will give you the following dialogue box:

The options for the thread are all layed out in here.

https://www.mcmaster.com/#