This is the Threaded Rod Plate.  It can be used with both V-Slot and OpenRail.  
This is the plate you want when you need the power of Nema 23 Stepper Motors coupled with lead/acme screws for your projects. 
The design of this plate allows for many possible mounting configurations.
6063-T6 AluminumBlack Anodized Finish3mm~ (1/8") Thick
Download the Lead Screw example build model.