Can you find a cut knurl that's that pitch. If so, then maybe look at one of these from Eagle Rock Tooling 
No deflection and you can run through the back to whatever length you need. OD depends on which model you get.
__________________
Star SR20RII/Fanuc 18i, DMG CTX310V4/Fanuc 32i, DMG CTX310ECO/Siemens 8400, Mori NV5000/MAPS, Bridgeport 760/Fanuc 18i, Kiamaster 4NEII60/Fanuc 3t;Partmaker, Gibbscam |