普通公制螺纹规格一览表

美制细螺纹规格 (UNF)NO.0-80(1.524) NO.1-72(1.354) NO.2-64(2.184) NO.3-56(2.515) NO.4-48(2.845) NO.5-44(3.175) NO.6-40(3.505) NO.8-36(4.166) NO.10-32(4.826) NO.12-28(5.346) 1/4-28 5/16-24 3/8-24 7/16-20 1/2-20 9/16-18 5/8-18 3/4-16 7/8-14 1 -12 1-1/8-12 1-1/4-12 1-3/8-12 1-1/2-12

美制粗螺纹规格 (UNC)NO.1-64(1.854) NO.2-56(2.184) NO.3-48(2.515) NO.4-40(2.845) NO.5-40(3.175) NO.6-32(3.505) NO.8-32(4.166) NO.10-24(4.826) NO.12-24(5.346) 1/4-28 5/16-18 3/8-16 7/16-14 1/2-13 9/16-12 5/8-11 3/4-10 7/8-9 1 -8 1-1/8-7 1-1/4-7 1-3/8-6 1-1/2-6 1-3/4-5 2 -4-1/2

标准径1.25 1.55 1.85 2.10 2.40 2.70 2.90 3.50 4.10 4.60 5.50 6.90 8.50 9.90 11.50 12.90 14.50 17.50 20.50 23.20 26.50 29.50 32.80 36.00

2级牙钻孔径 最大 最小1.305 1.612 1.912 2.197 2.458 2.740 3.022 3.606 4.165 4.724 5.588 7.035 8.636 10.033 11.607 13.081 14.581 17.678 20.675 23.571 26.746 29.921 33.096 36.271 1.162 1.474 1.736 2.025 2.271 2.551 2.820 3.404 3.963 4.496 5.360 6.782 8.382 9.729 11.329 12.751 14.351 17.323 20.270 23.114 26.269 29.464 32.639 35.814

标准径1.55 1.80 2.10 2.30 2.60 2.80 3.40 3.90 4.50 5.10 6.60 8.00 9.40 10.80 12.20 13.60 16.50 19.50 22.20 25.00 28.20 30.80 34.00 39.50 45.20

2级牙钻孔径 最大 最小1.582 1.871 2.146 2.385 2.697 2.895 3.530 3.962 4.597 5.257 6.731 8.153 9.550 11.023 12.446 12.868 18.840 19.761 22.606 25.349 28.524 31.115 34.290 39.327 45.593 1.425 1.695 1.941 2.157 2.487 2.642 3.302 3.683 4.344 4.979 6.401 7.798 9.144 10.592 11.989 13.386 16.307 19.177 21.971 24.638 27.813 30.353 38.528 38.964 44.679

美制手特细螺纹规格 (UNEF)NO.12 - 32 1/4 - 32 5/16 - 32 3/8 - 32 7/16 - 28 1/2 - 28 9/16 - 24 5/8 - 24

美制锥度管螺纹最小4.623 5.486 7.087 8.661 10.135 11.709 13.132 14.732

2级牙钻孔径 标准径4.70 5.60 7.10 8.70 10.20 11.80 13.20 14.80

最大4.862 5.690 7.264 8.865 10.338 11.938 13.386 14.983

规格 (NSPT)1/16 - 27 1/8 - 27 1/4 - 18 3/8 - 18 1/2 - 14 3/4 - 14 1 - 11-1/2 1-1/4-11-1/2

钻孔径NPT使用绞刀时 6.10 8.33 10.72 14.27 17.48 22.53 28.58 37.31 不用绞刀时 6.25 8.43 11.13 14.27 17.86 23.01 28.98 37.69 6.35 8.74 11.13 14.58 18.26 23.42 29.36 38.10

NPS

3/4 - 20 7/8 - 20 1 - 20

17.80 21.00 24.00

17.958 21.133 24.308

17.678 20.853 24.028

1-1/2-11-1/2 2 - 11-1/2

43.66 55.58

44.04 55.96

44.45 56.36

英制管螺纹规格 (BSP)RC 1/16-28 RP 1/8-28 G 1/4-19 3/8-19 1/2-14 3/4-14 1 - 11 1-1/4 - 11 1-1/2 - 11 2 - 11

英制锥度管螺纹最小6.490 8.495 11.341 14.846 18.489 23.975 30.111 38.772 44.665 56.476

2级牙钻孔径 标准径6.50 8.50 11.40 15.00 18.50 24.00 30.20 38.80 44.80 56.60

最大6.632 8.637 11.549 15.054 18.773 24.259 30.471 39.132 45.025 56.836

规格 (BSPT)PT 1/16 - 28 PT 1/8 - 28 PT 1/4 - 19 PT 3/8 - 19 PT 1/2 - 14 PT 3/4 - 14 PT 1 - 11 PT 1-1/4 - 11 PT 1-1/2 - 11 PT 2 - 11

钻孔径 NPT使用绞刀时 6.10 8.10 10.70 14.20 17.60 23.00 29.00 37.50 43.40 54.90 不用绞刀时 6.20 8.20 11.00 14.50 18.00 23.50 29.50 38.00 44.00 55.

50

NPS6.244 8.249 10.962 14.448 17.979 23.378 29.459 37.976 43.869 55.412

公制螺纹规格M1.0 X 0.2 M1.1 X 0.2 M1.2 X 0.2 M1.4 X 0.2 M1.6 X 0.2 M1.7 X 0.2 M1.8 X 0.2 M2.0 X 0.25 M2.2 X 0.25 M2.3 X 0.25 M2.5 X 0.35 M2.6X 0.35 M3.0X 0.35 M3.5X 0.35 M4.0X 0.50 M4.5 X 0.5 M5.0 X 0.5 M5.5 X 0.5 M6.0 X 0.75 M6.0 X 0.5 M7.0 X 0.75

标准径0.80 0.90 1.00 1.20 1.40 1.45 1.60 1.75 1.95 2.05 2.20 2.20 2.70 3.20 3.50 4.00 4.50 5.00 5.30 5.50 6.30

2级牙钻孔径 最大 最小0.821 0.921 1.021 1.221 1.421 1.500 1.621 1.785 1.985 2.061 2.221 2.246 2.721 3.221 3.599 4.099 4.599 5.099 5.378 5.550 6.378 0.783 0.883 0.983 1.183 1.383 1.460 1.583 1.729 1.929 2.001 2.121 2.186 2.621 0.121 3.459 3.959 4.459 4.959 5.188 5.400 6.188

规格M11 X 1.0 M11 X 0.75 M12 X 1.5 M12 X 1.25 M27 X 2.0 M27 X 1.5 M27 X 1.0 M28 X 2.0 M28 X 1.5 M28*1.0 M30*3.0 M30*1.5 M30*1.0 M32*2.0 M32*1.5 M33*3.0 M33*2.0 M33*1.5 M35*1.5 M36*3.0 M36*2.0

标准径10.00 10.30 10.50 10.80 25.00 25.50 26.00 26.00 26.5 27.00 27.00 28.5 29.00 30.00 30.50 30.00 31.00 31.50 33.50 33.00 34.00

2级牙钻孔径 最大 最小10.153 10.378 10.576 10.912 25.210 25.676 26.153 26.210 26.676 27.153 27.252 28.676 29.153 30.210 30.676 30.252 31.210 31.676 33.676 33.252 34.210 9.917 10.188 10.376 10.647 24.835 24.376 25.917 25.835 26.376 26.917 26.752 28.376 28.917 29.835 30.376 29.752 30.835 31.376 33.376 32.752 33.835

M7.0 X 0.5 M8.0 X 1.0 M8.0 X 0.75 M8.0 X 0.50 M9.0 X 1.0 M9.0 X 0.75 M10 X 1.25 M10 X 1.0 M10 X 0.75 M10 X 0.5

6.50 7.00 7.30 7.50 8.00 8.30 8.80 9.00 9.30 9.50

6.550 7.153 7.378 7.520 8.153 8.378 8.312 9.153 9.378 9.520

6.400 6.917 7.188 7.400 7.917 8.188 8.647 8.917 9.188 9.400

M36*1.5 M18*2.5 M20*2.5 M22*2.5 M24*3.0 M27*3.0 M30*3.5

34.50 15.50 17.50 19.50 21.00 24.00 26.50

34.676 15.744 17.744 19.744 21.252 24.252 26.771

34.376 15.294 17.294 19.294 20.752 23.752 26.211

NPS6.384 8.388 11.174 14.658 18.263 23.663 29.822 38.339 44.232 5.344