| 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 | mm | 90.5 | 89.95~91.05 | 72.7 | 3 | 2.91~3.09 | 8.9 | 4 | ±0.7 | |
| IRTW | mm | 93.5 | 92.95~94.05 | 75.1 | 3 | 2.91~3.09 | 9.2 | 4 | ±0.7 | |
| IRTW | mm | 95.5 | 94.95~96.05 | 76.7 | 3 | 2.91~3.09 | 9.4 | 4 | ±0.7 | |
| IRTW | mm | 97.5 | 96.95~98.05 | 78.3 | 3 | 2.91~3.09 | 9.6 | 4 | ±0.7 | |
| IRTW | mm | 100.5 | 99.95~101.05 | 80.5 | 3 | 2.91~3.09 | 10 | 4 | ±0.7 | |
| IRTW | mm | 103.5 | 102.95~104.05 | 82.9 | 3 | 2.91~3.09 | 10.3 | 4 | ±0.7 | |
| IRTW | mm | 105.5 | 104.95~106.05 | 84.5 | 3 | 2.91~3.09 | 10.5 | 4 | ±0.7 | |
| IRTW | inch | 0.437 | 0.430~0.444 | 0.303 | 0.039 | 0.038~0.041 | 0.067 | 0.035 | ±0.012 | |
| IRTW | inch | 0.48 | 0.474~0.487 | 0.339 | 0.039 | 0.038~0.041 | 0.071 | 0.035 | ±0.012 | |
| IRTW | inch | 0.524 | 0.517~0.530 | 0.382 | 0.039 | 0.038~0.041 | 0.071 | 0.035 | ±0.012 | |
| IRTW | inch | 0.555 | 0.549~0.562 | 0.429 | 0.039 | 0.038~0.041 | 0.063 | 0.035 | ±0.012 | |
| IRTW | inch | 0.594 | 0.588~0.601 | 0.461 | 0.039 | 0.038~0.041 | 0.067 | 0.035 | ±0.012 | |
| IRTW | inch | 0.638 | 0.631~0.644 | 0.496 | 0.039 | 0.038~0.041 | 0.071 | 0.035 | ±0.012 | |
| IRTW | inch | 0.681 | 0.675~0.688 | 0.531 | 0.039 | 0.038~0.041 | 0.075 | 0.035 | ±0.012 | |
| IRTW | inch | 0.72 | 0.713~0.728 | 0.563 | 0.039 | 0.038~0.041 | 0.079 | 0.035 | ±0.012 | |