STT P/N | DIM A (inch) | NUT SPEC | Width (inch) | MATERIAL | |
| Min | Max | ||||
| STT53-19-1/4 | 1.44 | 1.58 | 1/4-28 | 0.75 | 304 |
| STT54-19-1/4 | 1.69 | 1.94 | 1/4-28 | 0.75 | 304 |
| STT55-19-1/4 | 1.94 | 2.25 | 1/4-28 | 0.75 | 304 |
| STT56-19-1/4 | 2.19 | 2.5 | 1/4-28 | 0.75 | 304 |
| STT62-19-1/4 | 2.44 | 2.75 | 1/4-28 | 0.75 | 304 |
| STT63-19-1/4 | 2.55 | 2.86 | 1/4-28 | 0.75 | 304 |
| * Customized specification | |||||