Keystone Threaded Products manufactures a broad line of continuous threaded acme steel bar, continuous threaded alloy bar, precision acme components and precision roll formed worms. Fully finished products are handled in-house through our primary and secondary machining. Our wide range of capabilities is unsurpassed. Continuous threaded bar diameters from 1/2 inch to 15 inches and in lengths to 50 feet, coupled with a wide variety of threads and materials, make Keystone Threaded Products a true single source supplier. Industries from precision actuation to power generation rely upon Keystone to manufacture a high quality threaded bar specifically rolled to their unique specifications. Keystone's commitment to quality is visible in our methods and processes. All bars are roll threaded, recognized as superior to thread cutting, to provide uniformly smooth, precise threads. Materials used are certified and traceable. Our people have a depth of experience earned through years of experience which they bring to every job we handle. The result is a reliable product that excels in performance.