Hello,
Well I could not find on the Dinkle website that they supply contact terminals like the example. On the Dinkle data sheet they are providing wire ferrule dimensions. These are generally used for terminal blocks. It is going to be a larger list as I had to go from 16-22 awg. Generally these are not listed in a range so I am providing the whole stocking list:
You can narrow down the search just by choosing insulated or non insulated. When you know the wire gauge you are going to use you can choose that also.
We do have another post on wire ferrules here: Using and Crimping Wire Ferrules