| 扣環 | 掛耳 | 孔徑 | |||||||
|---|---|---|---|---|---|---|---|---|---|
| 項目 | 標準牌號 | 單位 | 內徑 | 公差 | 厚度 | 公差 | 值 | 值 | 公差 |
| STW | inch | 0.055 | 0.052~0.057 | 0.015 | 0.013~0.017 | 0.066 | 0.035 | ±0.004 | |
| STW | inch | 0.074 | 0.071~0.076 | 0.025 | 0.023~0.027 | 0.071 | 0.034 | ±0.004 | |
| STW | inch | 0.089 | 0.086~0.091 | 0.025 | 0.023~0.027 | 0.074 | 0.034 | ±0.004 | |
| STW | inch | 0.12 | 0.117~0.122 | 0.025 | 0.023~0.027 | 0.078 | 0.042 | +0.010,-0.002 | |
| STW | inch | 0.15 | 0.146~0.152 | 0.025 | 0.023~0.027 | 0.078 | 0.042 | +0.010,-0.002 | |
| STW | inch | 0.181 | 0.177~0.183 | 0.035 | 0.032~0.038 | 0.097 | 0.051 | +0.010,-0.002 | |
| STW | inch | 0.187 | 0.184~0.190 | 0.032 | 0.029~0.035 | 0.104 | 0.051 | ±0.004 | |
| STW | inch | 0.224 | 0.221~0.227 | 0.035 | 0.032~0.038 | 0.098 | 0.051 | +0.010,-0.002 | |
| STW | inch | 0.238 | 0.234~0.240 | 0.035 | 0.032~0.038 | 0.097 | 0.051 | +0.010,-0.002 | |
| STW | inch | 0.298 | 0.293~0.301 | 0.042 | 0.039~0.045 | 0.141 | 0.078 | +0.015,-0.002 | |
| STW | inch | 0.354 | 0.349~0.357 | 0.042 | 0.039~0.045 | 0.141 | 0.078 | +0.015,-0.002 | |
| STW | inch | 0.412 | 0.407~0.415 | 0.05 | 0.047~0.053 | 0.151 | 0.078 | +0.015,-0.002 | |
| STW | inch | 0.47 | 0.464~0.474 | 0.05 | 0.047~0.053 | 0.158 | 0.078 | +0.015,-0.002 | |
| STW | inch | 0.593 | 0.587~0.597 | 0.062 | 0.058~0.066 | 0.18 | 0.078 | +0.015,-0.002 | |
| STW | inch | 0.706 | 0.700~0.710 | 0.062 | 0.058~0.066 | 0.233 | 0.12 | +0.015,-0.002 | |