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Screws and Nuts
Duff-Norton has been manufacturing acme and ball screws and nuts for our actuator products for decades, and is now applying those years of experience to bring you an expanded assortment of screws and nuts for your application requirements.

Acme Screws & Nuts
Acme Screws & Nuts offer excellent load ratings and Centralizing class screw & nut assemblies.		 Ball Screws & Nuts
Ball Screws & Nuts offer excellent load ratings, 90% efficiency, and long predictable life ratings.

Performance - excellent performance ratings. Ball Screws are over 90% efficient. Quality - Centralizing class screw and nut assemblies. Precision rolled with good lead accuracy. Ball screws are precision rolled, heat-treated, inspected, and then manganese or black oxide coated. Delivery - in stock on the most popular sizes Broad Assortment - we offer a very broad assortment of screw diameters and leads System Integration - Duff-Norton can provide you with an entire screw and nut system: mounting components, drive components, controls, and protective coverings. Customer Service - talk to one of our knowledgeable customer service agents or application engineers



















Screws and Nuts


















Duff-Norton manufactures Mechanical Actuators (Screw Jacks), Electromechanical Linear Actuators, Electric Cylinders and  Rotating Joints. Since 1883, Duff-Norton has earned a reputation for reliable, high quality products meeting the industrial lifting, positioning, and transfer needs of our worldwide customers and has been ISO 9001 registered since 1994. HyperLink
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