As mentioned, 103944-1 is equipped with pre-loaded insulation displacement contacts, which are perhaps best suited to a production context where tooling costs can easily be recovered through labor savings.
Use of the corresponding loose-contact variant (103653-1, see “associated products” down the page for contacts, sold separately) would permit use of generic F-crimp tooling, of which these are perhaps the most popular.
Please note that it is generally not recommended to solder crimped stranded-wire connections, as this has been demonstrated to be less reliable due to risk of wire fracture compared to a properly executed crimp connection alone.