| 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 | 56.2 | 55.75~56.65 | 45.8 | 2 | 1.93~2.07 | 5.2 | 2.2 | ±0.5 | |
| IRTW | mm | 59.2 | 58.75~59.65 | 48 | 2 | 1.93~2.07 | 5.6 | 2.2 | ±0.5 | |
| IRTW | mm | 60.2 | 59.75~60.65 | 48.8 | 2 | 1.93~2.07 | 5.7 | 2.5 | ±0.5 | |
| IRTW | mm | 62.2 | 61.75~62.65 | 50.4 | 2 | 1.93~2.07 | 5.9 | 2.5 | ±0.5 | |
| IRTW | mm | 64.2 | 63.75~64.65 | 52 | 2 | 1.93~2.07 | 6.1 | 2.5 | ±0.5 | |
| IRTW | mm | 66.2 | 65.75~66.65 | 53.6 | 2 | 1.93~2.07 | 6.3 | 2.8 | ±0.5 | |
| IRTW | mm | 67.2 | 66.75~67.65 | 54.4 | 2 | 1.93~2.07 | 6.4 | 2.8 | ±0.5 | |
| IRTW | mm | 69.2 | 68.75~69.65 | 55.8 | 2.5 | 2.42~2.58 | 6.7 | 3.2 | ±0.5 | |
| IRTW | mm | 72.5 | 72.05~72.95 | 58.5 | 2.5 | 2.42~2.58 | 7 | 3.2 | ±0.5 | |
| IRTW | mm | 74.5 | 74.05~74.95 | 60.1 | 2.5 | 2.42~2.58 | 7.2 | 3.2 | ±0.5 | |
| IRTW | mm | 76.5 | 76.05~76.95 | 61.7 | 2.5 | 2.42~2.58 | 7.4 | 3.2 | ±0.7 | |
| IRTW | mm | 79.5 | 79.05~79.95 | 63.9 | 2.5 | 2.42~2.58 | 7.8 | 3.2 | ±0.7 | |
| IRTW | mm | 82.5 | 81.95~83.05 | 66.3 | 2.5 | 2.42~2.58 | 8.1 | 3.2 | ±0.7 | |
| IRTW | mm | 85.5 | 84.95~86.05 | 68.9 | 2.5 | 2.42~2.58 | 8.3 | 3.2 | ±0.7 | |
| IRTW | mm | 87.5 | 86.95~88.05 | 70.5 | 2.5 | 2.42~2.58 | 8.5 | 3.2 | ±0.7 | |