| 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 | 62.2 | 61.74~63.3 | 2 | 1.93~2 | 5.2 | ±0.2 | 2.5 | |
| IRTW | mm | 64.2 | 63.74~65.3 | 2 | 1.93~2 | 5.2 | ±0.2 | 2.5 | |
| IRTW | mm | 66.2 | 65.74~67.3 | 2 | 1.93~2 | 5.2 | ±0.2 | 2.5 | |
| IRTW | mm | 69.2 | 68.74~70.3 | 2.5 | 2.43~2.5 | 5.7 | ±0.2 | 2.5 | |
| IRTW | mm | 71.5 | 71.04~72.6 | 2.5 | 2.43~2.5 | 5.7 | ±0.3 | 2.5 | |
| IRTW | mm | 72.5 | 72.04~73.6 | 2.5 | 2.43~2.5 | 5.7 | ±0.3 | 2.5 | |
| IRTW | mm | 76.5 | 76.04~77.6 | 2.5 | 2.43~2.5 | 6 | ±0.3 | 2.5 | |
| IRTW | mm | 85.5 | 84.96~86.8 | 2.5 | 2.43~2.5 | 6 | ±0.3 | 2.5 | |
| IRTW | mm | 90.5 | 89.96~91.8 | 3 | 2.92~3 | 6.6 | ±0.3 | 3 | |
| IRTW | mm | 95.5 | 94.96~96.8 | 3 | 2.92~3 | 6.6 | ±0.3 | 3 | |
| IRTW | mm | 100.5 | 99.96~101.8 | 3 | 2.92~3 | 7.4 | ±0.3 | 3 | |
| IRTW | mm | 105.5 | 104.96~106.8 | 3 | 2.92~3 | 7.4 | ±0.3 | 3 | |
| IRTW | inch | 0.516 | 0.511~0.532 | 0.024 | 0.022~0.023 | 0.071 | ±0.0039 | 0.039 | |
| IRTW | inch | 0.634 | 0.629~0.650 | 0.031 | 0.030~0.031 | 0.079 | ±0.0039 | 0.039 | |
| IRTW | inch | 0.681 | 0.676~0.697 | 0.039 | 0.038~0.039 | 0.083 | ±0.0039 | 0.051 | |
