Wire wheels were first offered by Ford during 1925 on the new 1926 models.
They were welded spoke wire wheels similar to Model A Ford.
The wheels in your picture are aftermarket and probably later than 1911.
Two connections in action here.
First the domed nut on top holds the steering wheel spider fast to the steering gear pinion ( short shaft with gear on it). Loose nut may let the spider rock on the shaft if they are not a tight fit.
Second the steering gear pinion continues on as a plain shaft...
It is the Type A, first of 3 basic designs.
Type B has 2 intake ports in the side of the head and 8 exhaust ports on the top( one for each exhaust valve).
Type C featured 4 intake ports on the side of the head and 4 exhaust ports on the other side.
Just something to keep in mind...My Dad in his 70s gave up the Model T because he could not push the pedals hard enough or long enough. He went to a Model A until the clutch and brakes became too much.
Carriage bolts yes but the other way around I think. The holes in the bracket are round, so the square of a carriage bolt does not go against the bracket. Your rear fender irons have nuts on the outside with the head and square shoulder of the carriage bolt inside against the wood body runner. I...
https://www.modeltford.com/item/3660.aspx
2 bolts to the face of the body below the turtledeck.
Starting in 1913 the touring cars have a tail lamp bracket that mounts under the body with vertical bolts.
Wood felloe wheels were made with 2 pieces of wood for the felloes, each piece steam bent around 180 degrees. If one of your felloes is made in 3 pieces it has probably been repaired and the third piece spliced in. You should carefully inspect such a wheel as it is most likely not safe to use.
Very good Model T Ford accessory wire wheel, 30 x 3 1/2 clincher rim not sharp or dented. Strong solid wheel. Has 6 extra mounting holes where it was bolted to a wood wheel hub at one time, they are cosmetic only and easily filled. Domestic packaging and shipping $35.