| 扣環 | 截面 | 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 | 公差 |
| IRTW | mm | 17.15 | 17.02~17.39 | 0.64 | 0.59~0.68 | 1.83 | ±0.101 | 0.91 | ±0.101 | 0.76 | +0.254,-0.050 | |
| IRTW | mm | 20.52 | 20.40~20.77 | 0.89 | 0.84~0.93 | 2.16 | ±0.101 | 1.07 | ±0.101 | 1.07 | +0.254,-0.050 | |
| IRTW | mm | 22.28 | 22.15~22.52 | 1.07 | 1.02~1.11 | 2.34 | ±0.127 | 1.12 | ±0.127 | 1.07 | +0.254,-0.050 | |
| IRTW | mm | 23.98 | 23.86~24.23 | 1.07 | 1.02~1.11 | 2.51 | ±0.127 | 1.19 | ±0.127 | 1.07 | +0.254,-0.050 | |
| IRTW | mm | 25.78 | 25.66~26.03 | 1.07 | 1.02~1.11 | 2.69 | ±0.127 | 1.3 | ±0.127 | 1.07 | +0.254,-0.050 | |
| IRTW | mm | 27.46 | 27.34~27.71 | 1.07 | 1.02~1.11 | 2.87 | ±0.127 | 1.37 | ±0.127 | 1.07 | +0.254,-0.050 | |
| IRTW | mm | 29.21 | 28.96~29.59 | 1.27 | 1.22~1.32 | 3.05 | ±0.152 | 1.45 | ±0.152 | 1.27 | +0.254,-0.050 | |
| IRTW | mm | 30.91 | 30.66~31.29 | 1.27 | 1.22~1.32 | 3.12 | ±0.152 | 1.5 | ±0.152 | 1.27 | +0.254,-0.050 | |
| IRTW | mm | 32.59 | 32.34~32.96 | 1.27 | 1.22~1.32 | 3.2 | ±0.152 | 1.52 | ±0.152 | 1.27 | +0.254,-0.050 | |
| IRTW | mm | 34.32 | 34.07~34.69 | 1.27 | 1.22~1.32 | 3.28 | ±0.152 | 1.55 | ±0.152 | 1.27 | +0.254,-0.050 | |
| IRTW | mm | 36.02 | 35.77~36.39 | 1.27 | 1.22~1.32 | 3.35 | ±0.152 | 1.6 | ±0.152 | 1.27 | +0.254,-0.050 | |
| IRTW | mm | 37.74 | 37.50~38.12 | 1.27 | 1.22~1.32 | 3.43 | ±0.152 | 1.65 | ±0.152 | 1.27 | +0.254,-0.050 | |
| IRTW | mm | 39.42 | 39.17~39.80 | 1.27 | 1.22~1.32 | 3.66 | ±0.152 | 1.75 | ±0.152 | 1.93 | +0.381,-0.050 | |
| IRTW | mm | 41.2 | 40.95~41.57 | 1.27 | 1.22~1.32 | 3.76 | ±0.152 | 1.78 | ±0.152 | 1.93 | +0.381,-0.050 | |
| IRTW | mm | 42.88 | 42.55~43.38 | 1.57 | 1.50~1.65 | 4.01 | ±0.177 | 1.88 | ±0.177 | 1.93 | +0.381,-0.050 | |