| Business | Phone |
| Elite Fastener Co 2005 15th St, Rockford 61104 | (815) 397-8848 |
| Rockford Secondarys 2424 Laude Dr, Rockford 61109 | (815) 398-0401 |
| Rockford Ball Screw Co 940 Southrock Dr, Rockford 61102 | (815) 874-9532 |
| Mid-States Screw Corp 1817 18th Ave, Rockford 61104 | (815) 397-2440 |