| 扣環 | 截面 | 掛耳 | 孔徑 | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 項目 | 標準牌號 | 單位 | 內徑 | 公差 | 厚度 | 公差 | 最大 | 公差 | 最小 | 公差 | 值 | 值 | 公差 |
| STW | mm | 237.62 | 234.32~238.88 | 4.75 | 4.63~4.87 | 17.15 | ±0.381 | 9.32 | ±0.381 | 18.67 | 4.75 | +0.508,-0.127 | |
| STW | inch | 0.112 | 0.108~0.114 | 0.01 | 0.009~0.011 | 0.018 | ±0.0015 | 0.011 | ±0.0015 | 0.046 | 0.026 | +0.010,-0.002 | |
| STW | inch | 0.142 | 0.138~0.144 | 0.01 | 0.009~0.011 | 0.026 | ±0.0015 | 0.016 | ±0.0015 | 0.054 | 0.026 | +0.010,-0.002 | |
| STW | inch | 0.168 | 0.164~0.170 | 0.015 | 0.013~0.017 | 0.025 | ±0.002 | 0.016 | ±0.002 | 0.05 | 0.025 | +0.010,-0.002 | |
| STW | inch | 0.179 | 0.175~0.181 | 0.015 | 0.013~0.017 | 0.026 | ±0.002 | 0.016 | ±0.002 | 0.056 | 0.026 | +0.010,-0.002 | |
| STW | inch | 0.196 | 0.192~0.198 | 0.015 | 0.013~0.017 | 0.028 | ±0.002 | 0.017 | ±0.002 | 0.056 | 0.026 | +0.010,-0.002 | |
| STW | inch | 0.215 | 0.211~0.217 | 0.015 | 0.013~0.017 | 0.03 | ±0.002 | 0.019 | ±0.002 | 0.056 | 0.026 | +0.010,-0.002 | |
| STW | inch | 0.225 | 0.221~0.227 | 0.025 | 0.023~0.027 | 0.035 | ±0.003 | 0.025 | ±0.003 | 0.08 | 0.041 | +0.010,-0.002 | |
| STW | inch | 0.25 | 0.245~0.252 | 0.025 | 0.023~0.027 | 0.035 | ±0.003 | 0.024 | ±0.003 | 0.081 | 0.041 | +0.010,-0.002 | |
| STW | inch | 0.256 | 0.251~0.258 | 0.025 | 0.023~0.027 | 0.038 | ±0.003 | 0.025 | ±0.003 | 0.08 | 0.041 | +0.010,-0.002 | |
| STW | inch | 0.281 | 0.276~0.283 | 0.025 | 0.023~0.027 | 0.04 | ±0.003 | 0.026 | ±0.003 | 0.087 | 0.041 | +0.010,-0.002 | |
| STW | inch | 0.309 | 0.304~0.311 | 0.025 | 0.023~0.027 | 0.042 | ±0.003 | 0.027 | ±0.003 | 0.087 | 0.041 | +0.010,-0.002 | |
| STW | inch | 0.32 | 0.315~0.322 | 0.025 | 0.023~0.027 | 0.046 | ±0.003 | 0.029 | ±0.003 | 0.087 | 0.041 | +0.010,-0.002 | |
| STW | inch | 0.338 | 0.333~0.340 | 0.025 | 0.023~0.027 | 0.05 | ±0.003 | 0.031 | ±0.003 | 0.088 | 0.041 | +0.010,-0.002 | |
| STW | inch | 0.354 | 0.349~0.356 | 0.025 | 0.023~0.027 | 0.052 | ±0.003 | 0.031 | ±0.003 | 0.087 | 0.041 | +0.010,-0.002 | |