We manufacture large diameter fasteners!
Copper State has been manufacturing quality fasteners since the company was founded in 1972. Our state of the art manufacturing facility allows us to make virtually any fastener, including custom orders. We manufacture our fasteners in a variety of types, grades, specifications, and materials.
Our commitment to providing quality products is guaranteed with our in-house quality management programs. Our manufacturing facility is ISO 9001:2008 (Certificate #74 300 4126) certified and equipped with an A2LA (Certificate #0809.01) accredited labratory for all your testing and inspection needs.
We also specialize in the heat treatment of commercial and critical care fasteners, along with other metal-related items. Our heat treating facility services include hardening and tempering, normalizing, full anneal, sub ctirical anneal, solution anneal and age, stress relieving, baking, straightening, shot blasting, glass bead blasting, and black oil treatment.
We are proud members of the Metal Testing Institute and the American Society for Metals. It is our privilege to provide our customers with the processes they need, on time, and with a high standard of quality to ensure the greatest customer satisfaction.
We manufacture fasteners for a number of industries including power generation, steel fabrication, heavy equipment, mining, industrial, and construction. We proudly service a national and international customer base through our Manufacturing facility in Phoenix.