| 扣環 | 截面 | 孔徑 | ||||||
|---|---|---|---|---|---|---|---|---|
| 項目 | 標準牌號 | 單位 | 外徑 | 公差 | 厚度 | 公差 | 最大 | 值 |
| RTW | inch | 7.657 | 7.601~7.714 | 0.157 | 0.154~0.161 | 0.531 | 0.157 | |
| RTW | inch | 7.854 | 7.798~7.911 | 0.157 | 0.154~0.161 | 0.531 | 0.157 | |
| RTW | inch | 8.051 | 7.995~8.107 | 0.157 | 0.154~0.161 | 0.531 | 0.157 | |
| RTW | inch | 8.248 | 8.192~8.304 | 0.157 | 0.154~0.161 | 0.551 | 0.157 | |
| RTW | inch | 8.74 | 8.684~8.796 | 0.197 | 0.191~0.202 | 0.551 | 0.157 | |
| RTW | inch | 9.134 | 9.078~9.190 | 0.197 | 0.191~0.202 | 0.551 | 0.157 | |
| RTW | inch | 9.528 | 9.471~9.584 | 0.197 | 0.191~0.202 | 0.551 | 0.157 | |
| RTW | inch | 9.921 | 9.858~9.985 | 0.197 | 0.191~0.202 | 0.551 | 0.157 | |
| RTW | inch | 10.315 | 10.252~10.378 | 0.197 | 0.191~0.202 | 0.551 | 0.157 | |
| RTW | inch | 10.827 | 10.763~10.890 | 0.197 | 0.191~0.202 | 0.63 | 0.157 | |
| RTW | inch | 11.22 | 11.157~11.284 | 0.197 | 0.191~0.202 | 0.63 | 0.157 | |
| RTW | inch | 11.614 | 11.551~11.677 | 0.197 | 0.191~0.202 | 0.63 | 0.157 | |
| RTW | inch | 12.008 | 11.945~12.071 | 0.197 | 0.191~0.202 | 0.63 | 0.157 | |
| RTW | inch | 12.402 | 12.338~12.465 | 0.197 | 0.191~0.202 | 0.63 | 0.157 | |