| 扣環 | |||||||
|---|---|---|---|---|---|---|---|
| 項目 | 標準牌號 | 單位 | 外徑 | 內徑 | 公差 | 厚度 | 公差 |
| ETW | mm | 22.1 | 10.92 | 10.83~11.02 | 1.07 | 1.02~1.11 | |
| ETW | mm | 23.88 | 12.19 | 12.07~12.26 | 1.07 | 1.02~1.11 | |
| ETW | mm | 25.4 | 15.65 | 15.52~15.72 | 1.27 | 1.22~1.32 | |
| ETW | mm | 28.45 | 14.58 | 14.46~14.65 | 1.27 | 1.22~1.32 | |
| ETW | mm | 33.02 | 16.97 | 16.85~17.04 | 1.27 | 1.22~1.32 | |
| ETW | mm | 38.1 | 20.88 | 20.76~20.95 | 1.27 | 1.22~1.32 | |
| ETW | mm | 41.3 | 27.08 | 26.83~27.22 | 1.57 | 1.50~1.65 | |
| ETW | mm | 47.63 | 30.81 | 30.56~30.96 | 1.57 | 1.50~1.65 | |
| ETW | inch | 0.079 | 0.025 | 0.022~0.026 | 0.01 | 0.009~0.011 | |
| ETW | inch | 0.156 | 0.051 | 0.048~0.052 | 0.01 | 0.009~0.011 | |
| ETW | inch | 0.14 | 0.051 | 0.048~0.052 | 0.01 | 0.009~0.011 | |
| ETW | inch | 0.187 | 0.051 | 0.048~0.052 | 0.02 | 0.018~0.022 | |
| ETW | inch | 0.23 | 0.069 | 0.066~0.071 | 0.015 | 0.013~0.017 | |
| ETW | inch | 0.187 | 0.073 | 0.070~0.074 | 0.015 | 0.013~0.017 | |
| ETW | inch | 0.375 | 0.076 | 0.073~0.077 | 0.015 | 0.013~0.017 | |