| 扣環 | 截面 | 掛耳 | 孔徑 | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 項目 | 標準牌號 | 單位 | 外徑 | 公差 | 厚度 | 公差 | 最大 | 最小 | 值 | 值 |
| RTW | mm | 49.95 | 49.3~50.85 | 1.6 | 1.52~1.68 | 4.3 | 2.1 | 6 | 1.9 | |
| RTW | mm | 51.05 | 50.4~51.95 | 1.6 | 1.52~1.68 | 4.3 | 2.1 | 6 | 2.3 | |
| RTW | mm | 52.15 | 51.5~53.05 | 1.6 | 1.52~1.68 | 4.3 | 2.2 | 6 | 2.3 | |
| RTW | mm | 53.3 | 52.65~54.2 | 1.6 | 1.52~1.68 | 4.5 | 2.3 | 6 | 2.3 | |
| RTW | mm | 55.35 | 54.7~56.25 | 1.6 | 1.52~1.68 | 4.6 | 2.3 | 6 | 2.3 | |
| RTW | mm | 57.9 | 57.15~58.9 | 2 | 1.92~2.08 | 4.7 | 2.3 | 6.4 | 2.3 | |
| RTW | mm | 61.1 | 60.35~62.1 | 2 | 1.92~2.08 | 5.1 | 2.5 | 6.7 | 2.3 | |
| RTW | mm | 63.25 | 62.5~64.25 | 2 | 1.92~2.08 | 5.2 | 2.5 | 6.9 | 2.3 | |
| RTW | mm | 64.4 | 63.65~65.4 | 2 | 1.92~2.08 | 5.3 | 2.6 | 6.9 | 2.3 | |
| RTW | mm | 66.8 | 66.05~67.8 | 2 | 1.92~2.08 | 5.3 | 2.6 | 6.9 | 2.3 | |
| RTW | mm | 68.6 | 67.85~69.6 | 2 | 1.92~2.08 | 5.3 | 2.6 | 7.1 | 2.7 | |
| RTW | mm | 69.9 | 69.15~70.9 | 2 | 1.92~2.08 | 5.4 | 2.7 | 7.1 | 2.7 | |
| RTW | mm | 72.2 | 71.45~73.2 | 2.4 | 2.32~2.48 | 5.6 | 2.8 | 7.4 | 2.7 | |
| RTW | mm | 75.7 | 74.95~76.7 | 2.4 | 2.32~2.48 | 5.8 | 2.9 | 7.6 | 2.7 | |
| RTW | mm | 77.5 | 76.75~78.5 | 2.4 | 2.32~2.48 | 5.8 | 2.9 | 7.6 | 2.7 | |