14g spokes are generally threaded 56tpi. Spoke threads are not cut, they are rolled (cold formed). The way this is done is a special roll-forming die is used for the correct size thread. The spoke diameter is already the right size for roll-forming. The die changes the flat profile into a sinusoidal-like wave for threads with no sharp edges. This makes a thread that is much stronger for two main reasons: no material is removed, and the forming process introduces great stresses in the material's grain structure. In fact, spokes are hammered/cold formed throughout the entire length to increase their strength.
Making your own spokes sounds like a PITA without a spoke threading tool.. even with one too..
What is this eccentric hub you're talking about?
