| 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 | 最小 | 值 | 值 |
| RTW | inch | 2.49 | 2.461~2.529 | 2.49 | 0.076~0.081 | 0.205 | 0.098 | 0.272 | 0.091 | |
| RTW | inch | 2.535 | 2.506~2.574 | 2.535 | 0.076~0.081 | 0.209 | 0.102 | 0.272 | 0.091 | |
| RTW | inch | 2.63 | 2.601~2.669 | 2.63 | 0.076~0.081 | 0.209 | 0.102 | 0.272 | 0.091 | |
| RTW | inch | 2.701 | 2.672~2.740 | 2.701 | 0.076~0.081 | 0.209 | 0.102 | 0.28 | 0.106 | |
| RTW | inch | 2.752 | 2.723~2.791 | 2.752 | 0.076~0.081 | 0.213 | 0.106 | 0.28 | 0.106 | |
| RTW | inch | 2.843 | 2.813~2.881 | 2.843 | 0.092~0.097 | 0.22 | 0.11 | 0.291 | 0.106 | |
| RTW | inch | 2.98 | 2.951~3.019 | 2.98 | 0.092~0.097 | 0.228 | 0.114 | 0.299 | 0.106 | |
| RTW | inch | 3.051 | 3.022~3.090 | 3.051 | 0.092~0.097 | 0.228 | 0.114 | 0.299 | 0.106 | |
| RTW | inch | 3.134 | 3.105~3.173 | 3.134 | 0.092~0.097 | 0.228 | 0.114 | 0.299 | 0.106 | |
| RTW | inch | 3.28 | 3.250~3.318 | 3.28 | 0.092~0.097 | 0.244 | 0.122 | 0.311 | 0.106 | |
| RTW | inch | 3.417 | 3.363~3.472 | 3.417 | 0.108~0.113 | 0.256 | 0.126 | 0.311 | 0.122 | |
| RTW | inch | 3.508 | 3.453~3.562 | 3.508 | 0.108~0.113 | 0.264 | 0.13 | 0.311 | 0.122 | |
| RTW | inch | 3.587 | 3.532~3.641 | 3.587 | 0.108~0.113 | 0.272 | 0.134 | 0.343 | 0.122 | |
| RTW | inch | 3.717 | 3.662~3.771 | 3.717 | 0.108~0.113 | 0.276 | 0.142 | 0.343 | 0.122 | |
| RTW | inch | 3.854 | 3.800~3.909 | 3.854 | 0.108~0.113 | 0.287 | 0.142 | 0.343 | 0.122 | |