| 扣環 | 截面 | |||||||
|---|---|---|---|---|---|---|---|---|
| 項目 | 標準牌號 | 單位 | 外徑 | 內徑 | 公差 | 厚度 | 公差 | 最大 |
| CTW | inch | 1.327 | 1.035 | 1.028~1.043 | 0.063 | 0.060~0.066 | 0.146 | |
| CTW | inch | 1.421 | 1.106 | 1.099~1.114 | 0.063 | 0.060~0.066 | 0.157 | |
| CTW | inch | 1.551 | 1.213 | 1.203~1.222 | 0.063 | 0.060~0.066 | 0.169 | |
| CTW | inch | 1.594 | 1.248 | 1.239~1.257 | 0.063 | 0.060~0.066 | 0.173 | |
| CTW | inch | 1.677 | 1.315 | 1.306~1.324 | 0.063 | 0.060~0.066 | 0.181 | |
| CTW | inch | 1.772 | 1.386 | 1.371~1.401 | 0.063 | 0.060~0.066 | 0.193 | |
| CTW | inch | 1.858 | 1.457 | 1.442~1.472 | 0.063 | 0.060~0.066 | 0.201 | |
| CTW | inch | 1.992 | 1.559 | 1.544~1.574 | 0.063 | 0.060~0.066 | 0.217 | |
| CTW | inch | 2.13 | 1.665 | 1.650~1.680 | 0.063 | 0.060~0.066 | 0.232 | |
| CTW | inch | 2.22 | 1.732 | 1.717~1.747 | 0.079 | 0.076~0.081 | 0.244 | |
| CTW | inch | 2.307 | 1.811 | 1.796~1.826 | 0.079 | 0.076~0.081 | 0.248 | |
| CTW | inch | 2.421 | 1.909 | 1.895~1.924 | 0.079 | 0.076~0.081 | 0.256 | |