41.658
4.628 5.491 7.079 8.666 10.13 11.717 13.142 14.729 16.317 17.675 19.263 20.85 22.439 24.026 25.461 27.049 28.636 30.233 31.81 33.398 34.91 36.573 38.16 39.748
41.336
14 14.21 13.835 M10*0.75
M18
15.5 15.744 15.294 M12*1.5
M20
17.5 17.744 17.294 M12*1.25
M22
19.5 19.744 19.294 M12*1
M24
21 21.252 20.752 M14*1.5
M27
24 24.252 23.752 M14*1.25
6.7 8.7 11.7 15.2
19 21 24.5 28.2 30.6 35.2 39.2 45 51 57
6.843 8.848 11.89 15.395 19.172 21.128 24.658 28.418 30.931 35.579 39.592 45.485 51.428 57.296
7.8 7/8 -20 9.149 15/16 -20 10.584 1 -20 12.761 1 1/16 -18 13.376 1 1/8 -18 16.299 1 3/16 -18 19.169 1 1/4 -18 21.963 1 5/16 -18 24.648 1 3/8 -18 27.823 1 7/16 -18 30.343 1 1/2 -18 33.518 1 9/16 -18 38.95 1 5/8 -18
8.8 11.47
14.9 17.642 23.297 29.266 37.991 44.06 56.07
8.636 N0.0 -80 11.227 N0.1 -72 14.656 N0.2 -64 18.161 N0.3 -56 23.495 N0.4 -48 29.489 N0.5 -44 38.252 N0.6 -40 44.323 N0.8 -36 56.363 N0.10 -32
N0.12 -28 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 -35
1.25 1.55 1.85 2.1 2.4 2.7 2.9 3.5 4.1 4.6 5.5 6.9 8.5 9.9 11.5 12.9 14.5 17.5 20.5 23.3 26.5 29.6 32.8
6.135 8.48 10.996 14.416 17.813 23.127 29.059 37.784 43.85 55.86
6.223 8.568 11.128 14.284 17.642 23.297 29.266 37.991 44.06 56.07
6.046 8.393 10.864 14.548 17.983 22.957 28.851 37.576 43.646 55.659
M20*1.5
18.5 18.676 18.376
M20*1 M22*2 M22*1.5 M22*1 M24*2 M24*1.5 M24*1 M27*2 M27*1.5 M27*1 M30*3 M30*2 M30*1.5 M30*1
19 19.153 18.917 20 20.21 19.835 20.5 20.676 20.376 21 21.153 20.917 22 22.21 21.835 22.5 22.676 22.376 23 23.153 22.917 25 25.21 24.835 25.5 25.676 25.376 26 26.153 25.917 27 27.252 26.752 28 28.21 27.835 28.5 28.676 28.376 29 29.153 28.917
24 30.2 38.8 44.7 56.5
6.632 8.637 11.549 15.045 18.773 24.259 30.472 39.133 45.026 56.837
6.49 1/16 -28 8.495 1/8 -28 11.341 1/4 -19 14.846 3/8 -19 18.489 1/2 -14 23.975 3/4 -14 30.11 1 -11 38.771 1 1/4 -11 44.664 1 1/2 -11 56.475 2 -11
2.7 2.721 2.621 3.5 3.599 3.459 4.5 4.599 4.459 5.3 5.378 5.188 6.3 6.378 6.188
7 7.153 6.917 7.3 7.378 7.188 8.8 8.912 8.647
9 9.153 8.917 9.3 9.378 9.188 10.5 10.676 10.376 10.8 10.912 10.647
11 11.153 10.917 12.5 12.676 12.376 12.8 12.912 12.647
13 13.153 12.917 14.5 14.676 14.376
15 15.153 14.917 16 16.21 15.835 16.5 16.676 16.376 17 17.153 16.917 18 18.21 17.835
6.3 8.3 11 14.5 18.1 23.5 29.6 38.2 44 55.6
6.384 8.388 11.174 14.658 18.263 23.663 29.822 38.339 44.232 55.844
6.244 8.249 10.962 14.448 17.979 23.378 29.459 37.976 43.869 55.412
60°圆柱内螺纹（NPSC)
规格
钻孔直径
规格
统一螺纹（UNF）
钻孔直径
标准直径 最大 最小
标准直径 最大
最小
1/8 -27 1/4 -18 3/8 -18 1/2 -14 3/4 -14 1 -11.5 1 1/4 -11.5 1 1/2 -11.5 2 -11.5
8.48 11.35 14.77 17.813 23.127 29.059 37.784 43.85 55.86
55°圆柱内螺纹（Rp)
规格
钻孔直径
55°圆锥内螺纹（Rc)
规格
钻孔直径
标准直径 最大
最小
标准直径 最大 最小
1/16 -28 1/8 -28 1/4 -19 3/8 -19 1/2 -14 3/4 -14 1 -11 1 1/4 -11 1 1/2 -11 2 -11
6.5 8.5 11.4 14.9 18.6
M30
26.5 26.771 26.211 M14*1
M33
29.5 29.771 29.211 M16*1.5
M36
32 32.27 31.67 M16*1
M39
35 35.27 34.67 M18*2
M18*1.5
M18*1
M20*2
0.8 0.821 0.783 1.725 1.785 1.729
6.561 1/16 -27 8.566 1/8 -27 11.445 1/4 -18 14.95 3/8 -18 18.631 1/2 -14 20.587 3/4 -14 24.117 1 -11.5 27.877 1 1/4 -11.5 30.291 1 1/2 -11.5 34.939 2 -11.5 38.952 44.845 50.788 56.656
2.04 2.385 2.698 2.899 3.528 3.949
4.59 5.267 6.733 8.158
9.55 11.013 13.081 13.868 16.832 19.748 22.598 25.349 28.524 31.12 34.295 39.81
45.598
1.435 N0.12 -32 1.694 1/4 -32 1.94 5/16 -32 2.156 3/8 -32 2.487 7/16 -28 2.65 1/2 -28 3.307 9/16 -24 3.68 5/8 -24 4.34 11/16 -24 4.975 3/4 -20 6.41 13/16 -20
44.689 1 11/16 -18
4.722 5.585 7.172
8.76 10.237 11.824 13.265 14.85 16.44 17.821 19.409 20.996 22.585 24.172 25.622 27.21 28.797 30.394 31.97 33.559 35.07 36.734 38.12 39.909
36
1.305 1.612 1.912 2.197 2.458
2.74 3.022 3.606 4.165 4.724 5.588 7.035 8.636 10.033 11.607 13.081 14.681 17.678 20.675 23.571 26.746 29.921 33.096 36.271
统一螺纹（UNC）
规格
钻孔直径
统一螺纹（UNEF）
规格
钻孔直径
标准直径 最大 最小
标准直径 最大 最小
N0.1 -64 N0.2 -56 N0.3 -48 N0.4 -40 N0.5 -40 N0.6 -32 N0.8 -32 N0.10 -24 N0.12 -24 1/4 -20 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