The 2403 distributor used a slightly different point/coil wire stud than the versions in the links. Those versions were used on earlier distributors and featured nuts on both ends. The stud used on the 2403 units did not have a nut on the inside to secure the point strap and condenser wire. It was a swedged end with a notch. To install the points, You had to loosen the ring slot nut on the outside, install the point strap and condenser wire, tighten the ring slot, then you could attach the coil wire, deflector plate, nut and washer. It was a better arrangement in terms of simplicity, that and no nut to get loose on the inside of the distributor.
That being said, you could certainly use the linked insulator stud assemblies if you had a really damaged later model stud.
The aftermarket tool industry use to sell special drivers with the ring slot driver on one side and a nut driver on the other. They turn up on eBay once in a while. These studs got beat up pretty good because a lot o people did not know to loosen the ring slot nut and instead yanked out the points and condenser and then forced the new pieces in so not uncommon to see them damaged.
If you look at the last photo, that is a distributor I rebuilt last year or so and you can see the stud, point strap and condenser arrangement as installed.
