Ball Screws: Amazon. Befenybay Ball Screw SFU1605 (Diameter 16mm Pitch 5mm) Length 250mm with Metal Ball Screw Nut with BK12/BF12 Standard End Machining for CNC Machine Parts (250mm) Mophorn Ballscrew Anti-Backlash SFU1605-350mm 1605 Ball Screws and 1 Set BK and BF12 for CNC Route Grinding Machine.
