| Business | Phone |
| Alloy & Stainless Fasteners 11625 Charles Rd, Houston 77041 | (713) 466-3031 |
| Flexitallic Group Inc 450 Gears Rd 790, Houston 77067 | (281) 604-2500 |
| Tex Thread Inc 3317 W 11th St, Houston 77008 | (713) 802-1091 |
| Texas Bolt & Nut 421 Blueberry St, Houston 77018 | (713) 869-7111 |
| South Texas Bolt & Fitting 4845 Homestead Rd 500, Houston 77028 | (713) 673-5376 |
| U S Bolt Mfg Inc 12895 Main St, Houston 77035 | (713) 726-1000 |
| P C Fastener & Supply Inc 6451 Mcgrew St, Houston 77087 | (713) 641-2517 |