| 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 | 4.075 | 4.054~4.125 | 0.118 | 0.115~0.118 | 0.327 | 0.354 | 0.138 | |
| RTW | inch | 4.154 | 4.133~4.204 | 0.118 | 0.115~0.118 | 0.331 | 0.362 | 0.138 | |
| RTW | inch | 4.252 | 4.231~4.303 | 0.157 | 0.154~0.157 | 0.335 | 0.374 | 0.138 | |
| RTW | inch | 4.409 | 4.389~4.460 | 0.157 | 0.154~0.157 | 0.343 | 0.374 | 0.138 | |
| RTW | inch | 4.528 | 4.507~4.578 | 0.157 | 0.154~0.157 | 0.35 | 0.374 | 0.138 | |
| RTW | inch | 4.528 | 4.507~4.578 | 0.157 | 0.154~0.157 | 0.35 | 0.374 | 0.138 | |
| RTW | inch | 4.606 | 4.586~4.657 | 0.157 | 0.154~0.157 | 0.354 | 0.409 | 0.138 | |
| RTW | inch | 4.685 | 4.664~4.736 | 0.157 | 0.154~0.157 | 0.358 | 0.413 | 0.138 | |
| RTW | inch | 4.803 | 4.779~4.862 | 0.157 | 0.154~0.157 | 0.366 | 0.413 | 0.138 | |
| RTW | inch | 4.921 | 4.897~4.980 | 0.157 | 0.154~0.157 | 0.378 | 0.421 | 0.138 | |
| RTW | inch | 4.921 | 4.897~4.980 | 0.157 | 0.154~0.157 | 0.378 | 0.421 | 0.138 | |
| RTW | inch | 5 | 4.976~5.059 | 0.157 | 0.154~0.157 | 0.382 | 0.433 | 0.138 | |
| RTW | inch | 5.079 | 5.054~5.137 | 0.157 | 0.154~0.157 | 0.386 | 0.433 | 0.157 | |
| RTW | inch | 5.197 | 5.173~5.255 | 0.157 | 0.154~0.157 | 0.394 | 0.433 | 0.157 | |
| RTW | inch | 5.315 | 5.291~5.374 | 0.157 | 0.154~0.157 | 0.394 | 0.433 | 0.157 | |