About Us

United Steel & Fasteners, founded in 1975 and headquartered in Itasca, Illinois, has built a strong reputation for reliability, service, and consistency over the past five decades. We specialize in supplying high-quality industrial fasteners, including bolts, nuts, custom parts, and a wide range of related components, serving critical industries such as railroads, waterworks, industrial applications, and infrastructure projects.

Our operations strictly adhere to ISO and ASTM standards, ensuring that every product meets the performance expectations and dependability our customers require. Our quality control department, supported by trained professionals, utilizes advanced methods such as SPC, OPC, and destructive testing to maintain the highest standards of quality assurance.

United Steel’s production capabilities include manufacturing fasteners ranging from 3/8″ through 4 1/4″ in diameter, with no limitations in length. We produce a variety of grades, including 2, 5, 8, A-325, and A-490, ensuring we can meet diverse project specifications.

In addition to our standard product offerings, we accommodate custom specifications and project-specific requirements through both domestic manufacturing and global sourcing. We are fully compliant with BABA and AIS requirements, making us a trusted partner for government-funded and regulated projects.

Our experienced team is dedicated to assisting customers in selecting the right fasteners while ensuring dependable, on-time delivery. Our electronic data interchange system streamlines order processing, acknowledgments, and billing to provide a seamless and efficient customer experience.

United Steel & Fasteners maintains a comprehensive inventory of track, frog, switch, and hex bolts, along with a wide range of specialty items. Supported by a computerized inventory system and a responsive sales team, we remain focused on delivering dependable solutions and exceptional service to meet all of your fastener needs.