| T | Torbesa |
| T | Lu Chu Shin Yee Works Co. Ltd. |
| T | Thread Industrial Co. Ltd. |
| TAI-E | Tai-E Industries Co. Ltd. |
| TH | Tong Hwei Enterprise Co. Ltd. |
| TI | Thread Industrial Co. Ltd. |
| TMZ | Matz-Erreka |
| TS | Tuercas Sagarra |
| T-SOCKET | Lih Ta Screw Co. Ltd. |
| TUZ | Maudle Industrial Co. Ltd. |