| 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 | mm | 49.33 | 48.70~50.21 | 1.57 | 1.50~1.65 | 4.34 | ±0.177 | 2.11 | ±0.177 | 5.94 | 1.98 | +0.381,-0.050 | |
| RTW | inch | 0.28 | 0.270~0.290 | 0.015 | 0.013~0.017 | 0.025 | ±0.002 | 0.015 | ±0.002 | 0.065 | 0.031 | +0.010,-0.002 | |
| RTW | inch | 0.346 | 0.336~0.356 | 0.015 | 0.013~0.017 | 0.033 | ±0.002 | 0.018 | ±0.002 | 0.066 | 0.031 | +0.010,-0.002 | |
| RTW | inch | 0.415 | 0.405~0.425 | 0.025 | 0.023~0.027 | 0.04 | ±0.003 | 0.028 | ±0.003 | 0.082 | 0.041 | +0.010,-0.002 | |
| RTW | inch | 0.482 | 0.472~0.492 | 0.025 | 0.023~0.027 | 0.049 | ±0.003 | 0.029 | ±0.003 | 0.098 | 0.041 | +0.010,-0.002 | |
| RTW | inch | 0.498 | 0.488~0.508 | 0.025 | 0.023~0.027 | 0.05 | ±0.003 | 0.03 | ±0.003 | 0.098 | 0.047 | +0.010,-0.002 | |
| RTW | inch | 0.548 | 0.538~0.558 | 0.035 | 0.033~0.037 | 0.053 | ±0.004 | 0.035 | ±0.004 | 0.114 | 0.047 | +0.010,-0.002 | |
| RTW | inch | 0.56 | 0.550~0.570 | 0.035 | 0.033~0.037 | 0.053 | ±0.004 | 0.035 | ±0.004 | 0.114 | 0.047 | +0.010,-0.002 | |
| RTW | inch | 0.62 | 0.610~0.630 | 0.035 | 0.033~0.037 | 0.053 | ±0.004 | 0.035 | ±0.004 | 0.132 | 0.047 | +0.010,-0.002 | |
| RTW | inch | 0.694 | 0.684~0.704 | 0.035 | 0.033~0.037 | 0.06 | ±0.004 | 0.035 | ±0.004 | 0.132 | 0.062 | +0.010,-0.002 | |
| RTW | inch | 0.763 | 0.753~0.773 | 0.035 | 0.033~0.037 | 0.063 | ±0.004 | 0.036 | ±0.004 | 0.132 | 0.062 | +0.010,-0.002 | |
| RTW | inch | 0.831 | 0.821~0.841 | 0.035 | 0.033~0.037 | 0.07 | ±0.004 | 0.04 | ±0.004 | 0.142 | 0.062 | +0.010,-0.002 | |
| RTW | inch | 0.859 | 0.849~0.869 | 0.042 | 0.040~0.044 | 0.074 | ±0.005 | 0.044 | ±0.005 | 0.146 | 0.062 | +0.010,-0.002 | |
| RTW | inch | 0.901 | 0.886~0.916 | 0.042 | 0.040~0.044 | 0.077 | ±0.005 | 0.044 | ±0.005 | 0.155 | 0.062 | +0.010,-0.002 | |
| RTW | inch | 0.961 | 0.946~0.976 | 0.042 | 0.040~0.044 | 0.081 | ±0.005 | 0.045 | ±0.005 | 0.155 | 0.062 | +0.010,-0.002 | |