| 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 |
| NT | inch | 3.092 | 3.062~3.112 | 0.093 | 0.090~0.096 | 0.3 | ±0.008 | 0.147 | ±0.008 | 0.3 | 0.125 | +0.015,-0.002 | |
| NT | inch | 3.179 | 3.149~3.199 | 0.093 | 0.090~0.096 | 0.3 | ±0.008 | 0.148 | ±0.008 | 0.3 | 0.125 | +0.015,-0.002 | |
| NT | inch | 3.237 | 3.207~3.257 | 0.109 | 0.106~0.112 | 0.285 | ±0.008 | 0.148 | ±0.008 | 0.285 | 0.125 | +0.015,-0.002 | |
| NT | inch | 3.277 | 3.247~3.297 | 0.109 | 0.106~0.112 | 0.31 | ±0.008 | 0.149 | ±0.008 | 0.31 | 0.125 | +0.015,-0.002 | |
| NT | inch | 3.352 | 3.322~3.372 | 0.109 | 0.106~0.112 | 0.31 | ±0.008 | 0.153 | ±0.008 | 0.31 | 0.125 | +0.015,-0.002 | |
| NT | inch | 3.41 | 3.380~3.430 | 0.109 | 0.106~0.112 | 0.31 | ±0.008 | 0.156 | ±0.008 | 0.31 | 0.125 | +0.015,-0.002 | |
| NT | inch | 3.468 | 3.438~3.488 | 0.109 | 0.106~0.112 | 0.342 | ±0.008 | 0.16 | ±0.008 | 0.342 | 0.125 | +0.015,-0.002 | |
| NT | inch | 3.584 | 3.554~3.604 | 0.109 | 0.106~0.112 | 0.342 | ±0.008 | 0.163 | ±0.008 | 0.342 | 0.125 | +0.015,-0.002 | |
| NT | inch | 3.642 | 3.612~3.662 | 0.109 | 0.106~0.112 | 0.342 | ±0.008 | 0.163 | ±0.008 | 0.342 | 0.125 | +0.015,-0.002 | |
| NT | inch | 3.7 | 3.670~3.720 | 0.109 | 0.106~0.112 | 0.342 | ±0.008 | 0.163 | ±0.008 | 0.342 | 0.125 | +0.015,-0.002 | |
| NT | inch | 3.989 | 3.959~4.009 | 0.109 | 0.106~0.112 | 0.342 | ±0.010 | 0.176 | ±0.010 | 0.342 | 0.125 | +0.015,-0.002 | |
| NT | inch | 4.106 | 4.076~4.126 | 0.109 | 0.106~0.112 | 0.342 | ±0.010 | 0.181 | ±0.010 | 0.342 | 0.125 | +0.015,-0.002 | |
| NT | inch | 4.223 | 4.193~4.243 | 0.109 | 0.106~0.112 | 0.405 | ±0.010 | 0.185 | ±0.010 | 0.405 | 0.125 | +0.015,-0.002 | |
| NT | inch | 4.458 | 4.428~4.478 | 0.109 | 0.106~0.112 | 0.405 | ±0.010 | 0.136 | ±0.010 | 0.405 | 0.125 | +0.015,-0.002 | |
| NT | inch | 4.692 | 4.662~4.712 | 0.109 | 0.106~0.112 | 0.405 | ±0.010 | 0.194 | ±0.010 | 0.405 | 0.156 | +0.020,-0.005 | |