螺丝攻牙钻孔径和滚丝径对照表
螺丝攻牙钻孔径和滚丝径对照表
公制粗螺纹美制粗螺纹规
格标准径2级牙钻孔径规格(UNC)标准径2级牙钻孔径
M1.0 M1.1 M1.2 M1.4 M1.6 M1.7 M1.8 M2.0 M2.2 M2.3 M2.5 M2.6 M3.0 M3.0 M3.5 M4.0 M4.0 M4.5 M5.0 M5.0 M6.0 M7.0
最
h
< 取小
i 0.785 0.729 NO.1-64(1.854) 1.55 1.582 1.425
i 0.885 0.829 NO.2-56(2.184) 1.80 1.871 1.695
i 0.985 0.985 NO.3-48(2.515)2.10 2.146 1.941
1.142 1.075 NO.4-40(
2.845) 2.30 2.385 2.157
i 1.321 1.221 NO.5-40(3.175) 2.60 2.697 2.487
i 1.421 1.321 NO.6-32(3.505) 2.80 2.895 2.642
i 1.521 1.421 NO8-32(4.166) 3.40 3.53 3.302
1.679 1.567 NO.10-24(4.826) 3.90 3.962 3.683
i 1.838 1.713 NO.12-24(5.486) 4.50 4.597 4.344
1.979 1.867 1/4-20 5.10 5.257 4.979
I 2.138 2.013 5/16-18 6.60 6.731 6.401
I 2.238 2.113 3/8-16 8.00 8.153 7.798
2.599 2.459 ?16-14 9.40 9.55 9.144
2.440 2.280 1/2-13 10.80 11.023 10.592
3.010 2.850 9/16-12 12.20 12.446 11.989
3.422 3.242 ^8-11 13.60 12.868 13.386
i 3.326 3.106 ^4-10 16.50 18.840 16.307
I 3.878 3.688 778-9 19.50 19.761 19.177
4.334 4.134 1 22.20 22.606 21.971
4.170 3.930 1-1/8-7 2
5.00 25.349 24.638
5.153 4.917 1-1/4-7 28.20 28.524 27.813
6.153 5.917 1-3/8-6 30.80 31.115 30.353
0.25 0.75
0.25 0.85
0.25 0.95
0.5 2.50
0.6 2.40
0.6 2.90
0.7 3.30
0.8 4.20
0.9 4.10
1.0 5.00
1.0 6.00
0.3 1.10
0.35 1.25
0.35 1.35
0.35 1.45
0.4 1.60
0.45 1.75
0.4 1.90
0.45 2.10
0.45 2.20
0.75 3.25
0.75 3.80
M8.0 X 1.25 6.80 6.912 6.647 1-1/2-6 34.00 34.290 33.528
M9.0 X 1.25 7.80 7.912 7.647 1-3/4-5 39.50 39.827 38.964
M10X 1.5 8.50 8.676 8.376 2-4-1/2 45.20 45.593 44.679
M11X 1.5 9.50 9.676 9.376
M12X 1.75 10.30 10.441 10.106
M14X 2.0 12.00 12.210 11.835
M16X 2.0 14.00 14.210 13.835
M18X 2.5 15.50 15.744 15.294
M20X 2.5 17.50 17.744 17.294
M22X 2.5 19.50 19.744 19.294
M24X 3.0 21.00 21.252 20.752
M27X 3.0 24.00 24.252 23.752
M30X 3.5 26.50 26.771 26.211
螺丝攻牙钻孔径和滚丝径对照表
公制细螺纹美制细螺纹
规格标准径2级牙钻孔径规格(UNC)标准径2级牙钻孔径
最大最小最大最小
M1.0 X 0.2 0.80 0.821 0.783 N0.0-80(1.524) 1.25 1.3051.182
M1.1 X 0.2 0.90 0.921 0.883 NO.1-72(1.854) 1.55 1.6121.474
M1.2 X 0.2 1.00 1.021 0.983 NO.2-64(2.184) 1.85 1.9121.756
M1.4 X 0.2 1.20 1.221 1.183 NO.3-56(2.515) 2.10 2.1972.025
M1.6 X 0.2 1.40 1.421 1.383 NO.4-48(2.845) 2.40 2.4582.271
M1.7 X 0.2 1.45 1.500 1.460 NO.5-44(3.175) 2.70 2.740 2.551 M1.8 X 0.2 1.60 1.621 1.583 N0.6-40(3.505) 2.90 3.022 2.820 M2.0 X 0.25 1.75 1.785 1.729 NO.8-36(4.166)3.50 3.606 3.404
M2.2 X 0.25 1.95 1.985 1.929 NO.10-32件826) 4.10 4.165 3.963
M2.3 X 0.25 2.05 2.061 2.001 NO.12-28(5.846) 4.60 4.724 4.496 M2.5 X 0.35 2.20 2.221 2.121 1/4-28 5.50 5.588 5.360
M2.6 X 0.35 2.20 2.246 2.186 5/16-24 6.90 7.035 6.782
M3.0 X 0.35 2.70 2.721 2.621 38-24 8.50 8.636 8.382
M3.5 X 0.35 3.20 3.221 3.121 7716-20 9.90 10.033 9.729
M4.0 X 0.5 3.50 3.599 3.459 1/2-20 11.50 11.607 11.329
M4.5 X 0.5 4.00 4.099 3.959 9/16-18 12.90 13.081 12.751
M5.0 X 0.5 4.50 4.599 4.459 ^8-18 14.50 14.681 14.351
M5.5 X 0.5 5.00 5.099 4.959 34-16 17.50 17.678 17.323
M6.0 X 0.75 5.30 5.378 5.188 778-14 20.50 20.675 20.270
M6.0 X 0.5 5.50 5.550 5.400 1-12 23.20 23.571 23.114
M7.0 X 0.75 6.30 6.378 6.188 1-1/8-12 26.50 26.746 26.289
M7.0 X 0.5 6.50 6.550 6.400 1-1/4-12 29.50 29.921 29.464
M8.0 X 1.0 7.00 7.153 6.917 1-3/8-12 32.80 33.096 32.639
M8.0 X 0.75 7.30 7.378 7.188 1-1/2-12 36.00 36.271 35.814
M8.0 X 0.5 7.50 7.520 7.400
M9.0 X 1.0 8.00 8.153 7.917
M9.0 X 0.75 8.30 8.378 8.188
M10X 1.25 8.80 8.912 8.647
M10X 1.0 9.00 9.153 8.917
M10X 0.75 9.30 9.378 9.188
M10X 0.5 9.50 9.520 9.400
M11X 1.0 10.00 10.153 9.917
M11X 0.75 10.30 10.378 10.188
M12X 1.5 10.50 10.676 10.376
M12X 1.25 10.80 10.912 10.647
M12X 1.0 11.00 11.153 10.917 M12X 0.5 11.50 11.520 11.400
M14X 1.5 12.50 12.676 12.376 M14X 1.0 13.00 13.153 12.917 M15X 1.5 13.50 13.676 13.376 M15X 1.0 14.00 14.153 13.917 M16X 1.5 14.50 14.676 14.376 M16X 1.0 15.00 15.153 14.917 M17X 1.5 15.50 15.676 15.376 M17X 1.0 16.00 16.153 15.917 M18X 2.0 16.00 16.210 15.835 M18X 1.5 16.50 16.676 16.376 M18X 1.0 17.00 17.153 16.917 M20X 2.0 18.00 18.210 17.835 M20X 1.5 18.50 18.676 18.376 M20X 1.0 19.00 19.153 18.917 M22X 2.0 20.00 20.210 19.835
M22X 1.5 20.50 20.676 20.376 M22X 1.0 21.00 21.153 20.917
M24X 2.0 22.00 22.210 21.835
M24X 1.5 22.50 22.676 22.376 M24X 1.0 23.00 23.153 22.917
M25X 2.0 23.00 23.210 22.835 M25X 1.5 23.50 23.676 23.376 M25X 1.0 24.00 24.153 23.917 M26X 1.5 24.50 24.676 24.376
M27X 2.0 25.00 25.210 24.835
M27X 1.5 25.50 25.676 25.376
M27X 1.0 26.00 26.153 25.917
M28X 2.0 26.00 26.210 25.835
M28X 1.5 26.50 26.676 26.376
M28X 1.0 27.00 27.153 26.917
M30X 3.0 27.00 27.252 26.752
M30X 2.0 28.00 28.210 27.835
M30X 1.5 28.50 28.676 28.376
M30X 1.0 29.00 29.153 28.917
M32X 2.0 30.00 30.210 29.835
M32X 1.5 30.50 30.676 30.376
M33X 3.0 30.00 30.252 29.752
M33X 2.0 31.00 31.210 30.835
M33X 1.5 31.50 31.676 31.376
M35X 1.5 33.50 33.676 33.376
M36X 3.0 33.00 33.252 32.752
M36X 2.0 34.00 34.210 33.835
M36X 1.5 34.50 34.676 34.376
螺丝攻牙钻孔径和滚丝径对照表
公制挤压丝攻钻孔径美制挤压丝攻钻孔径规格精度等级规格(UNC)精度等级
G4-G6 G7-G8 G9 G4-G6 G7-G8 G9
M1.0 X 0.25 0.86 0.88 — NO.2-56UNC 1.94
M1.1 X 0.25 0.96 0.98 — NO.3-48 2.23 —
M1.2 M1.4 M1.6 M1.7 M1.8 M2.0 M2.2 M2.3 M2.5 M2.6 M3.0 M3.5 M4.0 M5.0 M6.0 M7.0 M8.0 M10 M10 M12 M12 0.25 1.06 1.08 — NO.4-40 2.50 ——
0.3 1.24 1.25 —NO.5-40 2.83 ——
0.35 1.41 1.43 —NO.6-32 3.07 ——
0.35 1.51 1.53 —NO.8-32 3.73 3.77 —
0.35 1.61 1.63 —NO.10-24 4.24 4.3 —
0.4 1.78 1.80 —NO.12-24 4.90 4.96 —
0.45 1.95 1.98 —1/4-20 — 5.72 —
0.4 2.08 2.10 —5^16-18 — 7.24 —
0.45 2.25 2.28 —^8-16 — 8.74 8.81
0.45 2.35 2.38 —7716-14 — 10.20 10.30 0.5 2.73 2.75 —1/2-13 — 11.27 11.82 0.6 3.17 3.20 —NO.2-64UNF 1.97 ——
0.7 3.62 3.65 3.69 NO.3-56 2.27 ——
0.8 4.56 4.60 4.64 NO.4-48 2.56 ——
1.0 5.45 5.50 5.55 NO.5-44
2.86 ——
1.0 6.45 6.50 6.55 NO.6-40 3.16 ——
1.25 7.31 7.38 7.44 NO.8-36 3.78 ——
1.5 9.18 9.25 9.32 NO.10-32 4.39 4.43 —1.25 9.31 9.38 9.44 NO.12-28 4.99 5.04 —
5.90
1.75 11.04 11.12 11.21 1/4-28 5.85
1.25 11.31 11.38 11.44 5/16-24 7.36 7.41
38-24 9.00
力6-20 10.48 10.54
1/2-20 12.07 12.13
美制特细螺纹英制电器螺纹
规格标准径2级牙钻孔径规格钻孔径最大最小
NO.12-32 4.70 4.826 4.623 2BA 4.0-4.2
1/4 -32 5.60 5.690 5.486 3BA
06 -32 7.10 7.264 7.087 4BA 3.0-3.2
38 -32 8.70 8.865 8.661 5BA 27-2.8
7716 -28 10.20 10.338 10.135 6BA2.4-2.5
1/2 -28 11.80 11.938 11.709
9/16 -24 13.20 13.386 13.132
38 -24 14.80 14.986 14.732
34 -20 17.80 17.958 17.678
778 -20 21.00 21.133 20.853
1 -20 24.00 24.308 24.028
螺丝攻牙钻孔径和滚丝径对照表
英制螺纹公制螺纹针车用螺纹
规格(UNEF)钻孔径规格滚丝径规格滚丝径
硬材软材
W 1/8 -40 2.65 2.60 M3X 0.5 2.63-2.60 SM78-40 2.735-2.688
W ?32 - 32 3.25 3.20 M3.0 X 0.6 2.56-2.53 SM&44 2.769-2.722
W3/16 -24 3.75 3.70 M3.5 X 0.6 3.06-3.03 SM904-4O 3.128-3.083 W 1/4 - 20 5.10 5.00 M4.0 X 0.7 3.49-3.45 SM1/B4-40 3.855-3.805 W^16- 18 6.60 6.50 M4.0 X 0.75 3.45-3.41 SIVK36-32 4.205-4.155 W3/8- 16 8.00 7.90 M4.5 X 0.75 3.96-3.92 SM36-28 4.143-4.093
W 7716- 14 9.40 9.30 M5.0 X 0.8 4.43-4.38 SIWB2-32 5.003-4.955
W 1/2 - 12 10.70 10.50 M5.0 X 0.9 4.36-4.31 SM1/54-28 5.325-5.570
W1 - 8 22.40 22.00 SM3/8-28 8.880-8.015
W 1-1/8 - 7 25.00 24.80 W 1 - 1/4 - 7 28.30 28.00
SM7/16-28 10.466-10.401 SM7/16-16 10.037-9.967
SM1/2-20 11.819-11.749 SM9/26-20 13.400-13.425
英制管螺纹 英制管螺纹 美制管螺纹
规格 标准径 钻孔径 规格 标准径 有交牙部之长度（最小）中之毋螺牙内径 标准长度（最小）中之毋螺牙内径 规格 钻孔径 最大 最小 使用绞刀时 不用绞刀时 NPT NPS 使用绞刀时 不用绞刀时
PS 1/16 - 28 6.50 6.632 6.490 PT 1/16 - 28 6.10 6.20 6.244 6.384 1/16 - 27 6.10 6.25 6.35 PS 1/8 - 28 8.50
8.637 8.495 PT 1/8 - 28 8.10
8.20 8.249 8.388 1/8 - 27 8.33
8.43
8.74
PS 1/4 - 19 11.40 11.549 11.341 PT 1/4 - 19 10.70 11.00 10.962 11.174 1/4 - 18 10.72 11.13 11.13 PS 3/8
-
19 15.00 15.054 14.846
PT 3/8 - 19 14.20 14.50
14.448 14.658 3/8 - 18 14.27 14.27 14.68 PS 1/2 -
14 18.50 18.773 18.489 PT 1/2 - 14 17.60 18.00 17.979 18.263 1/2 - 14 17.48 17.86
18.26
PS 3/4 -14 24.00 24.259 23.975 PT 3/4 - 14 23.00
23.50 23.378 23.663 3/4 - 14 22.63
23.01 23.42
PS 1 - 11 30.20 30.471 30.111 PT 1- 11 29.00 29.50 29.459 29.822 1 - 11-1/2 28.58 28.98
29.36
PS 1-1/4 - 11 38.80 39.132 38.772 PT 1-1/4 - 11 37.50 38.00
37.976 38.339 1-1/4-11-1/2 37.31 37.69
38.10 PS 1-1/2 - 11 44.80 45.025 44.665 PT 1-1/2 - 11 43.40 44.00 43.869 44.232 1-1/2-11-1/2 43.66
44.04
44.45
PS 2 - 11 56.50 56.836 56.476 PT 2 - 11 54.90
55.50
55.412 55.844 2 - 11 - 1/2 55.58
55.96 56.36
W 9/16 - 12 12.30 12.00 M6.0 X 1.0 5.30-5.25 SM/4-40 5.890-5.735 W 5/8 - 11 13.70 13.50 M7.0X 1.0 6.30-6.25 SM/14-28 5.721-5.366 W 3/4 - 10 16.70 16.50 M8.0X 1.0 7.28-7.23 SM93/2-28 6.508-6.648 W 7/8 - 9 19.50 19.30 M8.0X 1.25 7.12-7.07 SM1/132-28 8.092-8.432