3 pcs DFU1605 dual ball nut. 1 pcs DFU1605-350mm anti-backlashed ballscrew. 1 pcs DFU1605-450mm anti-backlashed ballscrew. 1 pcs DFU1605-550mm anti-backlashed ballscrew. the ballscrew is standard machine end.It can be machine ended per-drawing.
eBay