| Business | Phone |
| Textron Fastening Systems 1818 Christina St, Rockford 61104 | (815) 961-5500 |
| Textron Fastening Systems 412 18th Ave, Rockford 61104 | (815) 961-5400 |
| Specialty Screw Corp 2801 Huffman Blvd, Rockford 61103 | (815) 965-9707 |
| Rockford Products Corp 707 Harrison Ave, Rockford 61104 | (815) 397-6000 |
| Rockford Spring Co 3801 S Central Ave, Rockford 61102 | (815) 968-3000 |
| Rock River Fastener Corp 3044 Eastrock Ct, Rockford 61109 | (815) 229-6616 |
| Rockford Bolt & Steel Co 126 Mill St, Rockford 61101 | (815) 968-0514 |
| Rockford Fastener Inc 725 South St, Rockford 61102 | (815) 968-5343 |
| Pearson Fastener Corp 1400 Samuelson Rd, Rockford 61109 | (815) 397-4460 |