Solidworks美制粗、细、管螺纹标准对照表
03/11
美制粗、细、管螺纹标准对照表
1、美制粗螺纹
| 美制粗螺纹 | |||
| 规格 （UNC) | 标准径 | 2级牙钻孔径 | |
| *大 | 最小 | ||
| NO.1-64(1.854) | 1.55 | 1.582 | 1.425 |
| NO.2-56(2.184) | 1.80 | 1.871 | 1.695 |
| NO.3-48(2.515) | 2.10 | 2.146 | 1.941 |
| NO.4-40(2.845) | 2.30 | 2.385 | 2.157 |
| NO.5-40(3.175) | 2.60 | 2.697 | 2.487 |
| NO.6-32(3.505) | 2.80 | 2.895 | 2.642 |
| NO.8-32(4.166) | 3.40 | 3.530 | 3.302 |
| NO.10-24(4.826) | 3.90 | 3.962 | 3.683 |
| NO.12-24(5.486) | 4.50 | 4.597 | 4.344 |
| 1/4 -20 | 5.10 | 5.257 | 4.979 |
| 5/16 -18 | 6.60 | 6.731 | 6.401 |
| 3/8 -16 | 8.00 | 8.153 | 7.798 |
| 7/16 -14 | 9.40 | 9.550 | 9.144 |
| 1/2 -13 | 10.80 | 11.023 | 10.592 |
| 9/16 -12 | 12.20 | 12.446 | 11.989 |
| 5/8 -11 | 13.60 | 12.868 | 13.386 |
| 3/4 -10 | 16.50 | 18.840 | 16.307 |
| 7/8 -9 | 19.50 | 19.761 | 19.177 |
| 1-8 | 22.20 | 22.606 | 21.971 |
| 1-1/8-7 | 25.00 | 25.349 | 24.638 |
| 1-1/4-7 | 28.20 | 28.524 | 27.813 |
| 1-3/8-6 | 30.80 | 31.115 | 30.353 |
| 1-1/2-6 | 34.00 | 34.290 | 33.528 |
| 1-3/4-5 | 39.50 | 39.827 | 38.964 |
| 2-4-1/2 | 45.20 | 45.593 | 44.679 |
2、美制细螺纹
| 美制细螺纹 | |||
| 规格 （UNF) | 标准径 | 2级牙钻孔径 | |
| *大 | 最小 | ||
| NO.0-80(1.524) | 1.25 | 1.305 | 1.182 |
| NO.1-72(1.854) | 1.55 | 1.612 | 1.474 |
| NO.2-64(2.184) | 1.85 | 1.912 | 1.756 |
| NO.3-56(2.515) | 2.10 | 2.197 | 2.025 |
| NO.4-48(2.845) | 2.40 | 2.458 | 2.271 |
| NO.5-44(3.175) | 2.70 | 2.740 | 2.551 |
| NO.6-40(3.505) | 2.90 | 3.022 | 2.820 |
| NO.8-36(4.166) | 3.50 | 3.606 | 3.404 |
| NO.10-32(4.826) | 4.10 | 4.165 | 3.963 |
| NO.12-28(5.846) | 4.60 | 4.724 | 4.496 |
| 1/4-28 | 5.50 | 5.588 | 5.360 |
| 5/16-24 | 6.90 | 7.035 | 6.782 |
| 3/8-24 | 8.50 | 8.636 | 8.382 |
| 7/16-20 | 9.90 | 10.033 | 9.729 |
| 1/2-20 | 11.50 | 11.607 | 11.329 |
| 9/16-18 | 12.90 | 13.081 | 12.751 |
| 5/8-18 | 14.50 | 14.681 | 14.351 |
| 3/4-16 | 17.50 | 17.678 | 17.323 |
| 7/8-14 | 20.50 | 20.675 | 20.270 |
| 1-12 | 23.20 | 23.571 | 23.114 |
| 1-1/8-12 | 26.50 | 26.746 | 26.289 |
| 1-1/4-12 | 29.50 | 29.921 | 29.464 |
| 1-3/8-12 | 32.80 | 33.096 | 32.639 |
| 1-1/2-12 | 36.0 | 36.271 | 35.814 |
3、美制迫牙丝攻钻孔径
| 美制迫牙丝攻钻孔径 | |||
| 规格 | 精度等级 | ||
| G4-G6 | G7-G8 | G9 | |
| NO.2-56UNC | 1.94 | - | - |
| NO.3-48 | 2.23 | - | - |
| NO.4-40 | 2.50 | - | - |
| NO.5-40 | 2.83 | - | - |
| NO.6-32 | 3.07 | - | - |
| NO.8-32 | 3.73 | 3.77 | - |
| NO.10-24 | 4.24 | 4.30 | - |
| NO.12-24 | 4.90 | 4.96 | - |
| 1/4-20 | - | 5.72 | - |
| 5/16-18 | - | 7.24 | - |
| 3/8-16 | - | 8.74 | 8.81 |
| 7/16-14 | - | 10.20 | 10.30 |
| 1/2-13 | 11.27 | 11.82 | |
| NO.2-64UNF | 1.97 | - | - |
| NO.3-56 | 2.27 | - | - |
| NO.4-48 | 2.56 | - | - |
| NO.5-44 | 2.86 | - | - |
| NO.6-40 | 3.16 | - | - |
| NO.8-36 | 3.78 | - | - |
| NO.10-32 | 4.39 | 4.43 | - |
| NO.12-28 | 4.99 | 5.04 | - |
| 1/4-28 | 5.85 | 5.90 | - |
| 5/16-24 | 7.36 | 7.41 | - |
| 3/8-24 | - | 9.00 | - |
| 7/16-20 | - | 10.48 | 10.54 |
| 1/2-20 | - | 12.07 | 12.13 |
4、美制特细螺纹
| 美制特细螺纹 | |||
| 规格 （UNEF) | 标准径 | 2级牙钻孔径 | |
| *大 | 最小 | ||
| NO.12-32 | 4.70 | 4.826 | 4.623 |
| 1/4--32 | 5.60 | 5.690 | 5.486 |
| 5/16-32 | 7.10 | 7.264 | 7.087 |
| 3/8-32 | 8.70 | 8.865 | 8.661 |
| 7/16-28 | 10.20 | 10.338 | 10.135 |
| 1/2-28 | 11.80 | 11.938 | 11.709 |
| 9/16-24 | 13.20 | 13.386 | 13.132 |
| 5/8-24 | 14.80 | 14.986 | 14.732 |
| 3/4-20 | 17.80 | 17.958 | 17.678 |
| 7/8-20 | 21.00 | 21.133 | 20.853 |
| 1-20 | 24.00 | 24.308 | 24.028 |
5、美制管螺纹
| 美制管螺纹 | |||
| 规格 | 钻孔径 | ||
| NPT | NPS | ||
| 使用绞刀时 | 不用绞刀时 | ||
| 1/16-27 | 6.10 | 6.25 | 6.35 |
| 1/8-27 | 8.33 | 8.43 | 8.74 |
| 1/4-18 | 10.72 | 11.13 | 11.13 |
| 3/8-18 | 14.27 | 14.27 | 14.68 |
| 1/2-14 | 17.48 | 17.86 | 18.26 |
| 3/4-14 | 22.63 | 23.01 | 23.42 |
| 1-11-1/2 | 28.58 | 28.98 | 29.36 |
| 1-1/4-11-1/2 | 37.31 | 37.69 | 38.10 |
| 1-1/2-11-1/2 | 43.66 | 44.04 | 44.45 |
| 2-11-1/2 | 55.58 | 55.96 | 56.36 |
6、英制电器螺纹
| 英制电器螺纹 | |
| 规格 | 钻孔径 |
| 2BA | 4.0-4.2 |
| 3BA | |
| 4BA | 3.0-3.2 |
| 5BA | 2.7-2.8 |
| 6BA | 2.4-2.5 |
