| 扣環 | ||||||
|---|---|---|---|---|---|---|
| 項目 | 標準牌號 | 單位 | 內徑 | 公差 | 厚度 | 公差 |
| CRTW | mm | 30.18 | 29.93~30.42 | 0.38 | 0.34~0.43 | |
| CRTW | mm | 36.53 | 36.28~36.77 | 0.38 | 0.34~0.43 | |
| CRTW | mm | 40.64 | 40.39~40.89 | 0.38 | 0.34~0.43 | |
| CRTW | inch | 0.136 | 0.131~0.141 | 0.01 | 0.009~0.011 | |
| CRTW | inch | 0.175 | 0.170~0.180 | 0.01 | 0.009~0.011 | |
| CRTW | inch | 0.237 | 0.232~0.242 | 0.01 | 0.009~0.011 | |
| CRTW | inch | 0.258 | 0.253~0.263 | 0.01 | 0.009~0.011 | |
| CRTW | inch | 0.258 | 0.248~0.268 | 0.01 | 0.009~0.011 | |
| CRTW | inch | 0.312 | 0.302~0.322 | 0.01 | 0.009~0.011 | |
| CRTW | inch | 0.39 | 0.380~0.400 | 0.01 | 0.009~0.011 | |
| CRTW | inch | 0.39 | 0.380~0.400 | 0.01 | 0.009~0.011 | |
| CRTW | inch | 0.5 | 0.490~0.510 | 0.015 | 0.013~0.017 | |
| CRTW | inch | 0.625 | 0.615~0.635 | 0.015 | 0.013~0.017 | |
| CRTW | inch | 0.687 | 0.677~0.697 | 0.015 | 0.013~0.017 | |
| CRTW | inch | 0.75 | 0.740~0.760 | 0.015 | 0.013~0.017 | |