Single/Double Nut Ball Screw SFU1605/2005 (SFU/DFU/SFE/SFT) 1.Ball screws 2.Dia:16 20 25 32... 3.Lead: 05 10 16 20 25... 3.Grade is C5-C10,Lenth up to 6000mm 4.Model:SFU/DFU/SFE/SFT... 1. Ball screw 2. Using feature: Low Noise; Smooth Operation; High Rigidity and Preload; High Durability. 3. Designation list: SFU DFU series( single/double nut): 1204 1605 1610 2005 2505 2510 3205 3210 4005 4010 5010 6310 BALL SCREW NUT with double sides