Male and Female Threads Generated With stl_threads

Created with stl_threads and other [stl_cmd](https://github.com/frknsweetapps/stl_cmd)s.
Printed on my Makerbot Replicator 2. Read more about how this was created in my [blog post](http://freakinsweetapps.com/fid-handle-prototype-and-stl_cmd-more-free-software/).