At Keystone, we are a premier manufacturer of precision roll-threaded products, specializing in Acme, trapezoidal, unified form, and large-diameter threads. With unmatched expertise and advanced capabilities, we deliver high-quality, durable components engineered for long-term performance. We work with a wide range of materials, including carbon steel, alloy steel, stainless steel (303, 304, 316), brass, bronze, aluminum, and select exotic metals to meet diverse application requirements. Our threading capabilities include national coarse, fine, and Acme threads—produced as aggressive as 1.5 pitch—as well as metric and trapezoidal forms. Threads are available in both right- and left-hand configurations. In addition, our CNC machining department can custom machine bar ends to your exact specifications. To complement our threaded rod, we manufacture a variety of mating components, including hex, round, and cylindrical nuts, along with custom screws and specialty fasteners tailored to customer needs.