| 扣環 | 截面 | 掛耳 | 孔徑 | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 項目 | 標準牌號 | 單位 | 內徑 | 公差 | 厚度 | 公差 | 最大 | 值 | 值 |
| STW | mm | 255 | 253.38~255.81 | 5 | 4.85~5.15 | 16 | 4 | ||
| STW | mm | 265 | 263.38~265.81 | 5 | 4.85~5.15 | 16 | 4 | ||
| STW | mm | 275 | 273.38~275.81 | 5 | 4.85~5.15 | 16 | 4 | ||
| STW | mm | 285 | 283.38~285.81 | 5 | 4.85~5.15 | 16 | 4 | ||
| STW | inch | 0.106 | 0.101~0.107 | 0.01 | 0.009~0.010 | 0.02 | 0.067 | 0.028 | |
| STW | inch | 0.146 | 0.140~0.147 | 0.016 | 0.015~0.016 | 0.035 | 0.087 | 0.031 | |
| STW | inch | 0.185 | 0.180~0.186 | 0.024 | 0.023~0.025 | 0.043 | 0.094 | 0.031 | |
| STW | inch | 0.22 | 0.213~0.222 | 0.028 | 0.026~0.029 | 0.051 | 0.11 | 0.039 | |
| STW | inch | 0.256 | 0.249~0.258 | 0.031 | 0.030~0.033 | 0.055 | 0.118 | 0.039 | |
| STW | inch | 0.291 | 0.284~0.293 | 0.031 | 0.030~0.033 | 0.063 | 0.118 | 0.039 | |
| STW | inch | 0.331 | 0.323~0.333 | 0.039 | 0.038~0.041 | 0.071 | 0.126 | 0.039 | |
| STW | inch | 0.366 | 0.361~0.372 | 0.039 | 0.038~0.041 | 0.071 | 0.118 | 0.047 | |
| STW | inch | 0.402 | 0.396~0.407 | 0.039 | 0.038~0.041 | 0.079 | 0.122 | 0.047 | |
| STW | inch | 0.437 | 0.430~0.444 | 0.039 | 0.038~0.041 | 0.083 | 0.126 | 0.059 | |
| STW | inch | 0.472 | 0.466~0.479 | 0.039 | 0.038~0.041 | 0.083 | 0.13 | 0.059 | |