Chicago Nut & Bolt

Chicago Nut and Bolt is a trusted U.S.-based manufacturer and supplier of custom and non-standard fasteners, serving OEMs and industrial clients across construction, transportation, energy, and heavy equipment sectors. With over 30 years of experience, we specialize in precision manufacturing of bolts, nuts, studs, and specialty components to meet exact specifications—on time and with unmatched reliability. Our team understands the critical nature of fastener performance in demanding applications. That’s why we offer flexible production capabilities, same-day turnaround on urgent orders, and full traceability on all parts. Whether you're managing planned production or responding to an operational emergency, we deliver consistent quality, technical support, and responsive service you can count on. Chicago Nut and Bolt is ISO-certified and committed to meeting the highest standards of safety, quality, and customer satisfaction.