| 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 | 值 | 值 |
| NT | mm | 25.8 | 25.4~26.05 | 1.3 | 1.24~1.36 | 3.25 | 4.6 | 1.9 | |
| NT | mm | 27.9 | 27.5~28.15 | 1.3 | 1.24~1.36 | 3.3 | 4.9 | 1.9 | |
| NT | mm | 29.6 | 29.2~29.85 | 1.3 | 1.24~1.36 | 3.55 | 4.65 | 1.9 | |
| NT | mm | 32.3 | 31.9~32.55 | 1.3 | 1.24~1.36 | 3.9 | 4.6 | 1.9 | |
| NT | mm | 36.75 | 36.25~37.1 | 1.6 | 1.52~1.68 | 4.4 | 5.9 | 3.12 | |
| NT | mm | 41.6 | 41.1~41.95 | 1.6 | 1.52~1.68 | 4.8 | 6 | 3.12 | |
| NT | mm | 46.2 | 45.7~46.55 | 1.6 | 1.52~1.68 | 5.1 | 6.2 | 3.12 | |
| NT | mm | 50.6 | 49.95~50.95 | 2 | 1.92~2.08 | 5.4 | 6.7 | 3.12 | |
| NT | mm | 55.8 | 55.15~56.15 | 2 | 1.92~2.08 | 5.7 | 6.75 | 3.12 | |
| NT | inch | 1.016 | 1.000~1.025 | 0.051 | 0.049~0.053 | 0.128 | 0.181 | 0.075 | |
| NT | inch | 1.098 | 1.083~1.108 | 0.051 | 0.049~0.053 | 0.13 | 0.193 | 0.075 | |
| NT | inch | 1.165 | 1.150~1.175 | 0.051 | 0.049~0.053 | 0.14 | 0.183 | 0.075 | |
| NT | inch | 1.272 | 1.256~1.281 | 0.051 | 0.049~0.053 | 0.154 | 0.181 | 0.075 | |
| NT | inch | 1.447 | 1.428~1.460 | 0.063 | 0.060~0.066 | 0.173 | 0.232 | 0.123 | |
| NT | inch | 1.638 | 1.619~1.651 | 0.063 | 0.060~0.066 | 0.189 | 0.236 | 0.123 | |