Ball screw(ballscrew): We supply Ball Screws at a full range of high performance, cost effective, and precision for all applications. Ballscrews are critical components in machine tools and production machinery. Ball Screw Features Include: Long operating life, High lead accuracy to C3 and C5 standards, Fast delivery on many models. Specification list (SFI and DFI): 1605-4, 1610-3, 2005-4, 205T-4, 2505-4, 3205-4, 3210-4, 4005-4,