Seward Screw, LLC: The Leading Source for Precision Custom Screw Machined, Turned and Cold Formed / Cold Headed Parts and Components. Seward Screw has a unique and integral combination of leading-edge technology, streamlined processes, advanced support services, and caring, talented people, we are distinctively equipped, managed and staffed to meet your needs with optimized solutions, today and tomorrow. From a technology standpoint, Seward's primary manufacturing processes — high-speed rotary transfer machining, CNC machining, conventional screw machining, and multiple-die coldforming — are driven by state-of-the-art equipment to produce parts and components from steel, copper, brass, aluminum, stainless steel or other materials, within a wide range of diameters, lengths, shape complexities and tolerances. Coupled with our diverse in-house secondary operations and our certified sources for heat treating, plating, or other processes, we complete what we start, as your specifications require.