I got a set of pre metric Ford Wheels and nuts many years ago with the intent of putting them on my 1973 3/4 ton Camper Special. It is time to install new tires so it is time to install these wheels. The lug nuts I got with the wheels fit the taper and all fit well. The wheels tighten down, seem to fit correctly.
Pictures attached will show what I am working with.

Questions:

1. Is there any kind of sleeve or spacer to take the 1/2" space between where the cone of the nut ends in the wheel and the hub? It seems to me this is quite an "arm" hanging out there on the lug bolts with no support other than the torque of the lug nuts.
2. Is this the way they work or am I missing something?
3. Does anyone know what the load capacity of this wheel is?
Thanks.
Edit: The number stamped inside the wheels is
F5STA-1007-1A7700
J030796
16x7 and the Ford script K DOT-T

 

Correctly installed and torqued, the studs aren't carrying the weight of the vehicle anyways. The lugs are supposed to clamp the rim to the hub, and the clamp load is what is supporting the vehicle. So if the lug nuts fit the taper in the rim, and the studs on the vehicle, you're good to go.

I'd recommend some anti-seize on the rim where it meets the hub, and on the taper where the lug nut touches. That should help keep corrosion down if you're in a rust belt, and make it easier to remove afterwards. Some people will disagree on anti-seize on the actual studs, so I'll let you make your own decision on that one. (I use it, but use a lubed torque value instead of the regular one).