*Bronze acme nuts for 3" and larger diameter screws are supplied with an integral flange as standard.
Ball Screws and Nuts Model Numbering System
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Since 1883, Duff-Norton has earned a reputation for reliable, high quality products that meet the industrial lifting, positioning and transfer needs of our worldwide customers. Both our standard and custom designed products are subjected to the same rigorous testing throughout the design process to assure maximum performance and quality. We have been ISO 9001 registered since 1994, and practice and conduct lean initiatives regularly.