| 扣環 | 截面 | 掛耳 | 孔徑 | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 項目 | 標準牌號 | 單位 | 外徑 | 公差 | 厚度 | 公差 | 最大 | 值 | 值 |
| RTW | inch | 6.575 | 6.550~6.633 | 0.157 | 0.154~0.157 | 0.453 | 0.484 | 0.157 | |
| RTW | inch | 6.654 | 6.629~6.712 | 0.157 | 0.154~0.157 | 0.457 | 0.512 | 0.157 | |
| RTW | inch | 6.752 | 6.728~6.811 | 0.157 | 0.154~0.157 | 0.461 | 0.512 | 0.157 | |
| RTW | inch | 6.87 | 6.846~6.929 | 0.157 | 0.154~0.157 | 0.465 | 0.512 | 0.157 | |
| RTW | inch | 6.988 | 6.964~7.047 | 0.157 | 0.154~0.157 | 0.476 | 0.531 | 0.157 | |
| RTW | inch | 6.988 | 6.964~7.047 | 0.157 | 0.154~0.157 | 0.476 | 0.531 | 0.157 | |
| RTW | inch | 7.067 | 7.043~7.125 | 0.157 | 0.154~0.157 | 0.48 | 0.531 | 0.157 | |
| RTW | inch | 7.146 | 7.118~7.212 | 0.157 | 0.154~0.157 | 0.492 | 0.531 | 0.157 | |
| RTW | inch | 7.264 | 7.236~7.330 | 0.157 | 0.154~0.157 | 0.5 | 0.531 | 0.157 | |
| RTW | inch | 7.382 | 7.354~7.448 | 0.157 | 0.154~0.157 | 0.508 | 0.559 | 0.157 | |
| RTW | inch | 7.382 | 7.354~7.448 | 0.157 | 0.154~0.157 | 0.508 | 0.559 | 0.157 | |
| RTW | inch | 7.461 | 7.433~7.527 | 0.157 | 0.154~0.157 | 0.52 | 0.559 | 0.157 | |
| RTW | inch | 7.539 | 7.512~7.606 | 0.157 | 0.154~0.157 | 0.531 | 0.559 | 0.157 | |
| RTW | inch | 7.657 | 7.630~7.724 | 0.157 | 0.154~0.157 | 0.539 | 0.559 | 0.157 | |
| RTW | inch | 7.776 | 7.748~7.842 | 0.157 | 0.154~0.157 | 0.543 | 0.559 | 0.157 | |