... Nuts: v SFU, SFT, SFE, DFU, DFI etc.Size of screw shaft: 1204, 1205,1605, 1610, 1616, 2005, 2010, 2040, 2505 ... professional supplier of rolled ball screw,we can offer SFU,DFU,SFI,DFI,SFK etc various type to fit different requirement of ... rolled ball screws. Rolled ball screw SFU2005