Yes, bolts oblong the holes in the knuckles, become loose over time, and even break. With the tapered stud it won't loosen over time and at any point I/we can stick a tie rod back in the knuckle.
They are actually the 1/2-3/4 ton tie rods. Just everybody mistakes them for one ton tie rods. Its just become an accepted term to call them one tons.
The "one ton tre's" people refer to are 7/8-18 thread pitch. While the actual one ton tie rods are 1-18 thread pitch.
This is the most common part numbers used on steering conversions.