| Business | Phone |
| Dexter Hardware & Lumber 10330 Dexter Ave, Detroit 48206 | (313) 867-4800 |
| Curtis Bolt & Screw Co 4250 Grand River Ave, Detroit 48208 | (313) 838-3300 |
| Perry Screw & Bolt Corp 4250 Grand River Ave, Detroit 48208 | (313) 831-7635 |
| A & H Bolt & Nut Co 1624 Howard St, Detroit 48216 | (313) 965-1715 |
| Acme Bolt & Nut Co 414 S Oakwood, Detroit 48217 | (313) 842-7044 |
| United Sales & Svc Inc 20411 Warrington Dr, Detroit 48221 | (313) 345-3490 |
| Tulcos Tech & Die 535 Griswold St, Detroit 48226 | (313) 963-4382 |
| General Fasteners 15200 Plymouth Rd, Detroit 48227 | (313) 937-2123 |
| Key Sales & Supply Co 9950 Freeland St, Detroit 48227 | (313) 931-7720 |
| Marshall Sales Inc 14359 Meyers Rd, Detroit 48227 | (313) 491-1700 |
| Curtis Key Supplies & Repair 19620 Anglin St, Detroit 48234 | (313) 928-2918 |
| Detroit Heading 6421 Lynch Rd, Detroit 48234 | (313) 267-2240 |
| Textron Fastening Systems 6333 Lynch Rd, Detroit 48234 | (313) 267-3900 |
| Left Hand Bolt & Nut 14471 Livernois Ave, Detroit 48238 | (313) 861-6284 |
| Perigee Manufacturing Co 7519 Intervale St, Detroit 48238 | (313) 933-4420 |