| 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 | inch | 1.488 | 1.479~1.507 | 0.059 | 0.057~0.059 | 0.134 | ±0.0039 | 0.067 | |
| IRTW | inch | 1.528 | 1.518~1.547 | 0.059 | 0.057~0.059 | 0.142 | ±0.0039 | 0.067 | |
| IRTW | inch | 1.606 | 1.597~1.625 | 0.059 | 0.057~0.059 | 0.15 | ±0.0039 | 0.067 | |
| IRTW | inch | 1.713 | 1.698~1.748 | 0.069 | 0.067~0.068 | 0.165 | ±0.0078 | 0.079 | |
| IRTW | inch | 1.791 | 1.776~1.826 | 0.069 | 0.067~0.068 | 0.165 | ±0.0078 | 0.079 | |
| IRTW | inch | 1.909 | 1.895~1.944 | 0.069 | 0.067~0.068 | 0.165 | ±0.0078 | 0.079 | |
| IRTW | inch | 1.988 | 1.971~2.031 | 0.069 | 0.067~0.068 | 0.185 | ±0.0078 | 0.079 | |
| IRTW | inch | 2.028 | 2.010~2.070 | 0.069 | 0.067~0.068 | 0.185 | ±0.0078 | 0.079 | |
| IRTW | inch | 2.134 | 2.116~2.177 | 0.079 | 0.076~0.078 | 0.205 | ±0.0078 | 0.098 | |
| IRTW | inch | 2.213 | 2.195~2.255 | 0.079 | 0.076~0.078 | 0.205 | ±0.0078 | 0.098 | |
| IRTW | inch | 2.331 | 2.313~2.374 | 0.079 | 0.076~0.078 | 0.205 | ±0.0078 | 0.098 | |
| IRTW | inch | 2.409 | 2.392~2.452 | 0.079 | 0.076~0.078 | 0.205 | ±0.0078 | 0.098 | |
| IRTW | inch | 2.449 | 2.431~2.492 | 0.079 | 0.076~0.078 | 0.205 | ±0.0078 | 0.098 | |
| IRTW | inch | 2.528 | 2.510~2.570 | 0.079 | 0.076~0.078 | 0.205 | ±0.0078 | 0.098 | |
| IRTW | inch | 2.606 | 2.589~2.649 | 0.079 | 0.076~0.078 | 0.205 | ±0.0078 | 0.098 | |