I am still working out the best way to print the lettering, but as of right now I am using supports not only for the pegs but the lettering too (not hard to remove and better than having to sand).
The author remixed this model.
Due to the tight tolerances of the original model, and based off the comments and my own observations of the Bolt, the pegs on the Bolt were reduced from a 3.8mm diameter to 3.2mm diameter.
I also added lettering, numbers and symbols to the Bolts to customize this model even more.