| 扣環 | 截面 | 孔徑 | |||||||
|---|---|---|---|---|---|---|---|---|---|
| 項目 | 標準牌號 | 單位 | 外徑 | 公差 | 厚度 | 公差 | 最大 | 公差 | 值 |
| IRTW | mm | 34.4 | 34.15~34.9 | 1.2 | 1.14~1.2 | 3.3 | ±0.1 | 1.5 | |
| IRTW | mm | 35.5 | 35.25~36 | 1.2 | 1.14~1.2 | 3.3 | ±0.1 | 1.5 | |
| IRTW | mm | 36.5 | 36.25~37 | 1.5 | 1.44~1.5 | 3.4 | ±0.1 | 1.5 | |
| IRTW | mm | 37.8 | 37.55~38.3 | 1.5 | 1.44~1.5 | 3.4 | ±0.1 | 1.7 | |
| IRTW | mm | 38.8 | 38.55~39.3 | 1.5 | 1.44~1.5 | 3.6 | ±0.1 | 1.7 | |
| IRTW | mm | 40.8 | 40.55~41.3 | 1.5 | 1.44~1.5 | 3.8 | ±0.1 | 1.7 | |
| IRTW | mm | 43.5 | 43.11~44.4 | 1.75 | 1.69~1.75 | 4.2 | ±0.2 | 2 | |
| IRTW | mm | 45.5 | 45.11~46.4 | 1.75 | 1.69~1.75 | 4.2 | ±0.2 | 2 | |
| IRTW | mm | 48.5 | 48.11~49.4 | 1.75 | 1.69~1.75 | 4.2 | ±0.2 | 2 | |
| IRTW | mm | 50.5 | 50.04~51.6 | 1.75 | 1.69~1.75 | 4.7 | ±0.2 | 2 | |
| IRTW | mm | 51.5 | 51.04~52.6 | 1.75 | 1.69~1.75 | 4.7 | ±0.2 | 2 | |
| IRTW | mm | 54.2 | 53.74~55.3 | 2 | 1.93~2 | 5.2 | ±0.2 | 2.5 | |
| IRTW | mm | 56.2 | 55.74~57.3 | 2 | 1.93~2 | 5.2 | ±0.2 | 2.5 | |
| IRTW | mm | 59.2 | 58.74~60.3 | 2 | 1.93~2 | 5.2 | ±0.2 | 2.5 | |
| IRTW | mm | 61.2 | 60.74~62.3 | 2 | 1.93~2 | 5.2 | ±0.2 | 2.5 | |