| Business | Phone |
| Coldform Fasteners 3278 Bellevue St, Detroit 48207 | (313) 921-2680 |
| Charles B Raudabaugh Inc 20150 Sherwood St, Detroit 48234 | (313) 893-6250 |
| Lay Manufacturing 20100 Sherwood St, Detroit 48234 | (313) 369-1627 |
| Martin Manufacturing Co 18524 Mount Elliott St, Detroit 48234 | (313) 366-8226 |
| Giant Bolt & Fastener 8817 Lyndon St, Detroit 48238 | (313) 933-1118 |
| Wayne Bolt & Nut Co 14471 Livernois Ave, Detroit 48238 | (313) 862-0300 |