| 扣環 | 截面 | 孔徑 | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 項目 | 標準牌號 | 單位 | 外徑 | 公差 | 內徑 | 厚度 | 公差 | 最大 | 值 | 公差 |
| IRTW | inch | 0.768 | 0.760~0.775 | 0.602 | 0.039 | 0.038~0.041 | 0.083 | 0.039 | ±0.012 | |
| IRTW | inch | 0.807 | 0.800~0.814 | 0.634 | 0.039 | 0.038~0.041 | 0.087 | 0.039 | ±0.012 | |
| IRTW | inch | 0.846 | 0.839~0.854 | 0.665 | 0.039 | 0.038~0.041 | 0.091 | 0.039 | ±0.012 | |
| IRTW | inch | 0.886 | 0.878~0.893 | 0.697 | 0.039 | 0.038~0.041 | 0.094 | 0.047 | ±0.016 | |
| IRTW | inch | 0.925 | 0.918~0.933 | 0.736 | 0.039 | 0.038~0.041 | 0.094 | 0.047 | ±0.016 | |
| IRTW | inch | 1.02 | 1.012~1.027 | 0.815 | 0.047 | 0.045~0.049 | 0.102 | 0.047 | ±0.016 | |
| IRTW | inch | 1.059 | 1.052~1.066 | 0.846 | 0.047 | 0.045~0.049 | 0.106 | 0.047 | ±0.016 | |
| IRTW | inch | 1.098 | 1.091~1.106 | 0.878 | 0.047 | 0.045~0.049 | 0.11 | 0.047 | ±0.016 | |
| IRTW | inch | 1.185 | 1.176~1.194 | 0.949 | 0.047 | 0.045~0.049 | 0.118 | 0.047 | ±0.016 | |
| IRTW | inch | 1.264 | 1.254~1.273 | 1.012 | 0.047 | 0.045~0.049 | 0.126 | 0.055 | ±0.016 | |
| IRTW | inch | 1.354 | 1.345~1.364 | 1.079 | 0.047 | 0.045~0.049 | 0.138 | 0.063 | ±0.016 | |
| IRTW | inch | 1.437 | 1.428~1.446 | 1.146 | 0.059 | 0.057~0.061 | 0.146 | 0.063 | ±0.016 | |
| IRTW | inch | 1.488 | 1.479~1.498 | 1.181 | 0.059 | 0.057~0.061 | 0.154 | 0.063 | ±0.016 | |
| IRTW | inch | 1.528 | 1.518~1.537 | 1.213 | 0.059 | 0.057~0.061 | 0.157 | 0.063 | ±0.016 | |
| IRTW | inch | 1.567 | 1.558~1.576 | 1.244 | 0.059 | 0.057~0.061 | 0.161 | 0.063 | ±0.016 | |