Hot end bars

[james1]

I had a desire to create a hot end bar for a ctc replicator 11 to upgrade it from a mark 7/8 to a mark 10. it needs this bar because the feed mechanism requires a longer bar in order to work properly. having created the bar on a 3d printer, this allowed me to fit every thing together. I have created an aluminum bar of the same dimensions, etc, does anyone know the m3 thread pitch used on these bars. Is it 0.5 or 0.35?