... machine tools and production machinery.Features of ball screw and support nuts:Long operating life, High lead ... accuracy to C3 and C5 standards,Fast delivery on many models. Material and ... Nuts: SFU, SFT, SFE, DFU, DFI etc.Size of screw shaft: 1204, 1205,1605, 1610, 1616, 2005, 2010, ... Nuts: SFU, SFT, SFE, DFU, DFI etc.Size of screw shaft: 1204, 1205,1605, 1610, 1616, 2005, 2010 ...