| 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 | 3.13 | 3.113~3.147 | 0.098 | 0.096~0.101 | 0.26 | 0.307 | 0.098 | |
| RTW | inch | 3.248 | 3.227~3.269 | 0.098 | 0.096~0.101 | 0.26 | 0.315 | 0.098 | |
| RTW | inch | 3.366 | 3.345~3.387 | 0.098 | 0.096~0.101 | 0.276 | 0.315 | 0.098 | |
| RTW | inch | 3.445 | 3.424~3.466 | 0.098 | 0.096~0.101 | 0.276 | 0.315 | 0.118 | |
| RTW | inch | 3.563 | 3.542~3.584 | 0.118 | 0.115~0.121 | 0.276 | 0.315 | 0.118 | |
| RTW | inch | 3.681 | 3.660~3.702 | 0.118 | 0.115~0.121 | 0.299 | 0.323 | 0.118 | |
| RTW | inch | 3.76 | 3.739~3.781 | 0.118 | 0.115~0.121 | 0.299 | 0.327 | 0.118 | |
| RTW | inch | 3.839 | 3.817~3.860 | 0.118 | 0.115~0.121 | 0.315 | 0.327 | 0.118 | |
| RTW | inch | 3.957 | 3.936~3.978 | 0.118 | 0.115~0.121 | 0.315 | 0.335 | 0.118 | |
| RTW | inch | 4.075 | 4.054~4.096 | 0.118 | 0.115~0.121 | 0.327 | 0.343 | 0.118 | |
| RTW | inch | 4.154 | 4.132~4.175 | 0.118 | 0.115~0.121 | 0.327 | 0.346 | 0.118 | |
| RTW | inch | 4.252 | 4.231~4.273 | 0.157 | 0.154~0.161 | 0.35 | 0.354 | 0.118 | |
| RTW | inch | 4.409 | 4.388~4.431 | 0.157 | 0.154~0.161 | 0.35 | 0.358 | 0.118 | |
| RTW | inch | 4.528 | 4.506~4.549 | 0.157 | 0.154~0.161 | 0.35 | 0.374 | 0.118 | |
| RTW | inch | 4.606 | 4.585~4.627 | 0.157 | 0.154~0.161 | 0.35 | 0.402 | 0.118 | |