| 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 | 公差 | 最小 | 公差 | 值 | 值 | 公差 |
| RTW | inch | 2.415 | 2.385~2.455 | 0.078 | 0.075~0.081 | 0.199 | ±0.007 | 0.098 | ±0.007 | 0.25 | 0.093 | +0.015,-0.002 | |
| RTW | inch | 2.49 | 2.460~2.530 | 0.078 | 0.075~0.081 | 0.203 | ±0.007 | 0.099 | ±0.007 | 0.28 | 0.093 | +0.015,-0.002 | |
| RTW | inch | 2.56 | 2.530~2.600 | 0.078 | 0.075~0.081 | 0.206 | ±0.007 | 0.1 | ±0.007 | 0.28 | 0.093 | +0.015,-0.002 | |
| RTW | inch | 2.63 | 2.600~2.670 | 0.078 | 0.075~0.081 | 0.207 | ±0.007 | 0.102 | ±0.007 | 0.28 | 0.093 | +0.015,-0.002 | |
| RTW | inch | 2.702 | 2.672~2.742 | 0.078 | 0.075~0.081 | 0.209 | ±0.007 | 0.103 | ±0.007 | 0.28 | 0.11 | +0.015,-0.002 | |
| RTW | inch | 2.775 | 2.745~2.815 | 0.078 | 0.075~0.081 | 0.21 | ±0.007 | 0.103 | ±0.007 | 0.28 | 0.11 | +0.015,-0.002 | |
| RTW | inch | 2.844 | 2.814~2.884 | 0.093 | 0.090~0.096 | 0.222 | ±0.007 | 0.109 | ±0.007 | 0.3 | 0.11 | +0.015,-0.002 | |
| RTW | inch | 2.91 | 2.880~2.950 | 0.093 | 0.090~0.096 | 0.226 | ±0.007 | 0.111 | ±0.007 | 0.3 | 0.11 | +0.015,-0.002 | |
| RTW | inch | 2.98 | 2.950~3.020 | 0.093 | 0.090~0.096 | 0.23 | ±0.007 | 0.113 | ±0.007 | 0.3 | 0.11 | +0.015,-0.002 | |
| RTW | inch | 3.05 | 3.020~3.090 | 0.093 | 0.090~0.096 | 0.234 | ±0.007 | 0.115 | ±0.007 | 0.3 | 0.11 | +0.015,-0.002 | |
| RTW | inch | 3.121 | 3.091~3.161 | 0.093 | 0.090~0.096 | 0.23 | ±0.007 | 0.115 | ±0.007 | 0.3 | 0.11 | +0.015,-0.002 | |
| RTW | inch | 3.191 | 3.161~3.231 | 0.093 | 0.090~0.096 | 0.24 | ±0.007 | 0.12 | ±0.007 | 0.3 | 0.11 | +0.015,-0.002 | |
| RTW | inch | 3.325 | 3.295~3.365 | 0.093 | 0.090~0.096 | 0.25 | ±0.007 | 0.122 | ±0.007 | 0.3 | 0.11 | +0.015,-0.002 | |
| RTW | inch | 3.418 | 3.363~3.473 | 0.109 | 0.106~0.112 | 0.254 | ±0.008 | 0.126 | ±0.007 | 0.31 | 0.125 | +0.015,-0.002 | |
| RTW | inch | 3.488 | 3.433~3.543 | 0.109 | 0.106~0.112 | 0.259 | ±0.008 | 0.129 | ±0.007 | 0.31 | 0.125 | +0.015,-0.002 | |