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| 項目 | 標準牌號 | 單位 | 外徑 | 公差 | 內徑 | 公差 | 厚度 | 公差 |
| ETW | mm | 12 | 11.8~12.2 | 6 | 5.88~6 | 0.8 | 0.76~0.84 | |
| ETW | mm | 14 | 13.8~14.2 | 7 | 6.85~7 | 0.8 | 0.76~0.84 | |
| ETW | mm | 16 | 15.8~16.2 | 8 | 7.85~8 | 0.8 | 0.76~0.84 | |
| ETW | mm | 18 | 17.8~18.2 | 9 | 8.85~9 | 0.8 | 0.76~0.84 | |
| ETW | mm | 20 | 19.7~20.3 | 10 | 9.85~10 | 1 | 0.95~1.05 | |
| ETW | mm | 23 | 22.7~23.3 | 12 | 11.82~12 | 1 | 0.95~1.05 | |
| ETW | mm | 29 | 28.7~29.3 | 15 | 14.82~15 | 1.5 | 1.44~1.56 | |
| ETW | mm | 37 | 36.7~37.3 | 19 | 18.79~19 | 1.5 | 1.44~1.56 | |
| ETW | mm | 44 | 43.7~44.3 | 24 | 23.79~24 | 2 | 1.93~2.07 | |
| ETW | inch | 0.059 | 0.056~0.062 | 0.024 | 0.023~0.024 | 0.008 | 0.0071~0.0086 | |
| ETW | inch | 0.079 | 0.075~0.082 | 0.026 | 0.024~0.026 | 0.008 | 0.0071~0.0086 | |
| ETW | inch | 0.079 | 0.075~0.082 | 0.031 | 0.029~0.031 | 0.008 | 0.0071~0.0086 | |
| ETW | inch | 0.11 | 0.107~0.114 | 0.039 | 0.036~0.038 | 0.008 | 0.0071~0.0086 | |
| ETW | inch | 0.118 | 0.115~0.122 | 0.047 | 0.044~0.047 | 0.012 | 0.011~0.012 | |
| ETW | inch | 0.157 | 0.150~0.165 | 0.059 | 0.056~0.059 | 0.016 | 0.015~0.016 | |