| Business | Phone |
| Century Fasteners Corp 115 Westpark Blvd, Columbia 29210 | (803) 798-8100 |
| Fastco Threaded Products Inc 739 Old Clemson Rd, Columbia 29229 | (803) 788-1000 |
| Fastenal Co 1601 Shop Rd # I, Columbia 29201 | (803) 779-4322 |
| Fastener Supply Co 930 Brookwood Dr, Columbia 29201 | (803) 771-6060 |