| 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 | mm | 417 | 416~419 | 6 | 5.85~6 | 20 | 20.2 | 6 | |
| RTW | inch | 0.343 | 0.339~0.356 | 0.031 | 0.030~0.031 | 0.043 | 0.094 | 0.039 | |
| RTW | inch | 0.386 | 0.382~0.400 | 0.031 | 0.030~0.031 | 0.051 | 0.098 | 0.039 | |
| RTW | inch | 0.425 | 0.422~0.439 | 0.039 | 0.038~0.039 | 0.055 | 0.126 | 0.047 | |
| RTW | inch | 0.465 | 0.461~0.478 | 0.039 | 0.038~0.039 | 0.059 | 0.13 | 0.047 | |
| RTW | inch | 0.512 | 0.508~0.525 | 0.039 | 0.038~0.039 | 0.067 | 0.134 | 0.059 | |
| RTW | inch | 0.555 | 0.552~0.569 | 0.039 | 0.038~0.039 | 0.071 | 0.142 | 0.059 | |
| RTW | inch | 0.594 | 0.591~0.608 | 0.039 | 0.038~0.039 | 0.071 | 0.146 | 0.067 | |
| RTW | inch | 0.638 | 0.634~0.651 | 0.039 | 0.038~0.039 | 0.079 | 0.146 | 0.067 | |
| RTW | inch | 0.681 | 0.678~0.695 | 0.039 | 0.038~0.039 | 0.079 | 0.15 | 0.067 | |
| RTW | inch | 0.72 | 0.716~0.737 | 0.039 | 0.038~0.039 | 0.083 | 0.154 | 0.067 | |
| RTW | inch | 0.768 | 0.763~0.784 | 0.039 | 0.038~0.039 | 0.087 | 0.161 | 0.079 | |
| RTW | inch | 0.807 | 0.802~0.823 | 0.039 | 0.038~0.039 | 0.087 | 0.161 | 0.079 | |
| RTW | inch | 0.846 | 0.841~0.862 | 0.039 | 0.038~0.039 | 0.091 | 0.165 | 0.079 | |
| RTW | inch | 0.886 | 0.880~0.902 | 0.039 | 0.038~0.039 | 0.094 | 0.165 | 0.079 | |