| 級別 | 公稱尺寸 | 外徑 | 壁厚 | 橢圓度 | 重量 | |||
| mm | in | Max. | Min. | 平頭 | 車絲 | |||
| A級 | 15 | ? | 21.4 | 21.0 | 2 | ＜0.4 | 0.947 | 0.956 |
| 20 | ? | 26.9 | 26.4 | 2.3 | ＜0.5 | 1.38 | 1.39 | |
| 25 | 1 | 33.8 | 33.2 | 2.6 | ＜0.5 | 1.98 | 2.00 | |
| 32 | 1? | 42.5 | 41.9 | 2.6 | ＜0.6 | 2.54 | 2.57 | |
| 40 | 1? | 48.4 | 47.8 | 2.9 | ＜0.6 | 3.23 | 3.27 | |
| 50 | 2 | 60.2 | 59.6 | 2.9 | ＜0.6 | 4.08 | 4.15 | |
| 65 | 2? | 76.0 | 75.2 | 3.2 | ＜0.6 | 5.71 | 5.83 | |
| 80 | 3 | 88.7 | 87.9 | 3.2 | ＜0.8 | 6.72 | 6.89 | |
| 100 | 4 | 113.9 | 113.0 | 3.6 | ＜0.8 | 9.75 | 10.00 | |
| B級 | 15 | ? | 21.7 | 21.1 | 2.6 | ＜0.4 | 1.21 | 1.22 |
| 20 | ? | 27.2 | 26.6 | 2.6 | ＜0.5 | 1.56 | 1.57 | |
| 25 | 1 | 34.2 | 33.4 | 3.2 | ＜0.5 | 2.41 | 2.43 | |
| 32 | 1? | 42.9 | 42.1 | 3.2 | ＜0.6 | 3.10 | 3.13 | |
| 40 | 1? | 48.8 | 48.0 | 3.2 | ＜0.6 | 3.57 | 3.61 | |
| 50 | 2 | 60.8 | 59.8 | 3.6 | ＜0.6 | 5.03 | 5.10 | |
| 65 | 2? | 76.6 | 75.4 | 3.6 | ＜0.6 | 6.43 | 6.55 | |
| 80 | 3 | 89.5 | 88.1 | 4.0 | ＜0.8 | 8.37 | 8.54 | |
| 100 | 4 | 114.9 | 113.3 | 4.5 | ＜0.8 | 12.2 | 12.5 | |
| 125 | 5 | 140.6 | 138.7 | 5.0 | ＜1.0 | 16.6 | 17.0 | |
| 150 | 6 | 166.1 | 164.1 | 5.0 | ＜1.0 | 19.7 | 20.3 | |
| C級 | 15 | ? | 21.7 | 21.1 | 3.2 | ＜0.4 | 1.44 | 1.45 |
| 20 | ? | 27.2 | 26.6 | 3.2 | ＜0.5 | 1.87 | 1.88 | |
| 25 | 1 | 34.2 | 33.4 | 4.0 | ＜0.5 | 2.94 | 2.96 | |
| 32 | 1? | 42.9 | 42.1 | 4.0 | ＜0.6 | 3.80 | 3.83 | |
| 40 | 1? | 48.8 | 48.0 | 4.0 | ＜0.6 | 4.38 | 4.42 | |
| 50 | 2 | 60.8 | 59.8 | 4.5 | ＜0.6 | 6.19 | 6.26 | |
| 65 | 2? | 76.6 | 75.4 | 4.5 | ＜0.6 | 7.93 | 8.05 | |
| 80 | 3 | 89.5 | 88.1 | 5.0 | ＜0.8 | 10.3 | 10.5 | |
| 100 | 4 | 114.9 | 113.3 | 5.4 | ＜0.8 | 14.5 | 14.8 | |
| 125 | 5 | 140.6 | 138.7 | 5.4 | ＜1.0 | 17.9 | 18.4 | |
| 150 | 6 | 166.1 | 164.1 | 5.4 | ＜1.0 | 21.3 | 21.9 | |
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