攻牙底孔参数

菅文福 · 发表于 2013-8-22 16:35:19

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攻牙底孔的使用参数表
一、螺紋下孔徑表
1、公制粗牙螺紋                      JIS B 0209-1982(單位：mm)
螺纹尺寸钻头直径螺纹下孔徑內螺紋小徑
最小直径最大直径
M 1  × 0.25 0.75 0.78 (80%) 0.729 0.785
1.1 × 0.25 0.85 0.88 (80%) 0.829 0.885
1.2 × 0.25 0.95 0.98 (80%) 0.929 0.985
1.4 × 0.3 1.1 1.14 (80%) 1.075 1.142
1.6 × 0.35 1.25 1.32 (75%) 1.221 1.321
1.8 × 0.35 1.45 1.52 (75%) 1.421 1.521
2  × 0.4 1.6 1.65 (80%) 1.567 1.679
2.2 × 0.45 1.75 1.83 (75%) 1.713 1.838
2.5 × 0.45 2.1 2.13 (75%) 2.013 2.138
3  × 0.5 2.5 2.59 (75%) 2.459 2.599
3.5 × 0.6 2.9 3.01 (75%) 2.850 3.010
4  × 0.7 3.3 3.39 (80%) 3.242 3.422
4.5 × 0.75 3.8 3.85 (80%) 3.688 3.878
5  × 0.8 4.2 4.31 (80%) 4.134 4.334
6  × 1 5 5.13 (80%) 4.917 5.153
7  × 1 6 6.13 (80%) 5.917 6.153
8  × 1.25 6.8 6.85 (85%) 6.647 6.912
9  × 1.25 7.8 7.85 (85%) 7.647 7.912
10  × 1.5 8.5 8.62 (85%) 8.376 8.676
11  × 1.5 9.5 9.62 (85%) 9.376 9.676
12  × 1.75 10.3 10.40 (85%) 10.106 10.441
14  × 2 12 12.2  (85%) 11.835 12.210
16  × 2 14 14.2  (85%) 13.835 14.210
18  × 2.5 15.5 15.7  (85%) 15.294 15.744
20  × 2.5 17.5 17.7  (85%) 17.294 17.744
22  × 2.5 19.5 19.2  (85%) 19.294 19.744
24  × 3 21 21.2  (85%) 20.752 21.252
27  × 3 24 24.2  (85%) 23.752 24.252
30  × 3.5 26.5 26.6  (90%) 26.211 26.771
33  × 3.5 29.5 29.6  (90%) 29.211 29.771
36  × 4 32 32.1  (90%) 31.670 32.270
39 × 4 35 35.1  (90%) 34.670 35.270
42 × 4.5 37.5 37.6  (90%) 37.129 37.799
45 × 4.5 40.5 40.6  (90%) 40.129 40.799
48 × 5 43 43.1  (90%) 42.587 43.297

註(1)M1.4以下等級：5H、M1.6以上等級：6H (2)基於JIS B 0209-1982標準

2、公制細牙螺紋-01                         JIS B 0211-1982(單位：mm)
螺纹尺寸钻头直径螺纹下孔徑內螺紋小徑
最小直径最大直径
M 2.5 × 0.35 2.2 2.22 (75%) 2.121 2.221
3  × 0.35 2.7 2.72 (75%) 2.621 2.721
3.5 × 0.35 3.2 3.22 (75%) 3.121 3.221
4  × 0.5 3.5 3.59 (75%) 3.459 3.599
4.5 × 0.5 4 4.09 (75%) 3.959 4.099
5  × 0.5 4.5 4.59 (75%) 4.459 4.599
5.5 × 0.5 5 5.09 (75%) 4.959 5.099
6  × 0.75 5.3 5.35 (80%) 5.188 5.378
7  × 0.75 6.3 6.35 (80%) 6.188 6.378
8  × 1 7 7.13 (80%) 6.917 7.153
8  × 0.75 7.3 7.35 (80%) 7.188 7.378
9  × 1 8 8.13 (80%) 7.917 8.153
9  × 0.75 8.3 8.35 (80%) 8.188 8.378
10  × 1.25 8.8 8.85 (85%) 8.647 8.912
10  × 1 9 9.13 (80%) 8.917 9.153
10  × 0.75 9.3 9.35 (80%) 9.188 9.378
11  × 1 10 10.13 (80%) 9.917 10.153
11  × 0.75 10.3 10.35 (80%) 10.188 10.378
12  × 1.5 10.5 10.62 (85%) 10.376 10.676
12  × 1.25 10.8 10.85 (85%) 10.647 10.912
12  × 1 11 11.13 (80%) 10.917 11.153
14  × 1.5 12.5 12.62 (85%) 12.376 12.676
14  × 1 13 13.13 (80%) 12.917 13.153
15  × 1.5 13.5 13.62 (85%) 13.376 13.676
15  × 1 14 14.13 (80%) 13.917 14.153
16  × 1.5 14.5 14.62 (85%) 14.376 14.676
16  × 1 15 15.13 (80%) 14.917 15.153
17  × 1.5 15.5 15.62 (85%) 15.376 15.676
17  × 1 16 16.13 (80%) 15.917 16.153
18  × 2 16 16.2 (85%) 15.835 16.210
18  × 1.5 16.5 16.62 (85%) 16.376 16.676
18  × 1 17 17.13 (80%) 16.917 17.153
20  × 2 18 18.2  (85%) 17.835 18.210
20  × 1.5 18.5 18.62 (85%) 18.376 18.676
20  × 1 19 19.13 (80%) 18.917 19.153
22  × 2 20 20.2 (85%) 19.835 20.210
22  × 1.5 20.5 20.62 (85%) 20.376 20.676
22  × 1 21 21.13 (80%) 20.917 21.153
24  × 2 22 22.2 (85%) 21.835 22.210
24  × 1.5 22.5 22.62 (85%) 22.376 22.676
24  × 1 23 23.13 (80%) 22.917 23.153
25  × 2 23 23.2  (85%) 22.835 23.210
25  × 1.5 23.5 23.62 (85%) 23.376 23.676
25  × 1 24 24.13 (80%) 23.917 24.153

公制細牙螺紋-02                               JIS B 0211-1982(單位：mm)
螺纹尺寸钻头直径螺纹下孔徑內螺紋小徑
最小直径最大直径
M 26 × 1.5 24.5 24.62 (85%) 24.376 24.676
27 × 2 25 25.2 (85%) 24.835 25.210
27 × 1.5 25.5 25.62 (85%) 25.376 25.676
27 × 1 26 26.13 (80%) 25.917 26.153
28 × 2 26 26.2 (85%) 25.835 26.210
28 × 1.5 26.5 26.62 (85%) 26.376 26.676
28 × 1 27 27.13 (80%) 26.917 27.153
30 × 3      27 27.2  (85%) 26.752 27.252
30 × 2 28 28.2  (85%) 27.835 28.210
30 × 1.5 28.5 28.62 (85%) 28.376 28.676
30 × 1 29 29.13 (80%) 28.917 29.153
32 × 2 30 30.2  (85%) 29.835 30.210
32 × 1.5 30.5 30.62 (85%) 30.376 30.676
33 × 3 30 30.2  (85%) 29.752 30.252
33 × 2 31 31.2  (85%) 30.835 31.210
33 × 1.5 31.5 31.62 (85%) 31.376 31.676
35 × 1.5 33.5 33.62 (85%) 33.376 33.676
36 × 3 33 33.2 (85%) 32.752 33.252
36 × 2 34 34.2  (85%) 33.835 34.210
36 × 1.5 34.5 34.62 (85%) 34.376 34.676
38 × 1.5 36.5 36.62 (85%) 36.376 36.676
39 × 3 36 36.2 (85%) 35.752 36.252
39 × 2 37 37.2  (85%) 36.835 37.210
39 × 1.5 37.5 37.62 (85%) 37.376 37.676
40 × 3 37 37.2  (85%) 36.752 37.252
40 × 2 38 38.2  (85%) 37.835 38.210
40 × 1.5 38.5 38.62 (85%) 38.376 38.676
42 × 4 38 38.1  (90%) 37.670 38.270
42 × 3 39 39.2  (85%) 38.752 39.252
42 × 2 40 40.2 (85%) 39.835 40.210
42 × 1.5 40.5 40.62 (85%) 40.376 40.676
45 × 4 41 41.1  (90%) 40.670 41.270
45 × 3 42 42.2  (85%) 41.752 42.252
45 × 2 43 43.2  (85%) 42.835 43.210
45 × 1.5 43.5 43.62 (85%) 43.376 43.676
48 × 4 44 44.1  (90%) 43.670 44.270
48 × 3 45 45.2  (85%) 44.752 45.252
48 × 2 46 46.2  (85%)
45.835 46.210
48 × 1.5 46.5 46.62 (85%) 46.376 46.676
50 × 3 47 47.2  (85%) 46.752 47.252
50 × 2 48 48.2  (85%) 47.835 48.210
50 × 1.5 48.5 48.62 (85%) 48.376 48.676
註(1)等級：6H
(2)基於JIS B 0211-1982標準
3、美制粗牙螺紋                            (單位：mm)
螺纹尺寸钻头直径 2B级螺纹下孔徑內螺紋小徑
最小直径最大直径
NO.1 -64UNC 1.55 1.57 (65%) 1.425 1.582
2 -56 1.8 1.86 (65%) 1.695 1.871
3 -48 2.1 2.14 (65%) 1.941 2.146
4 -40 2.3 2.36 (70%) 2.157 2.385
5 -40 2.6 2.69 (70%) 2.487 2.697
6 -32 2.8 2.86 (75%) 2.642 2.895
8 -32 3.4 3.52 (75%) 3.302 3.530
  10 -24 3.9 3.91 (80%) 3.683 3.962
  12 -24 4.5 4.57 (80%) 4.344 4.597
1/4  -20 5.1 5.25 (80%) 4.979 5.257
5/16  -18 6.6 6.72 (80%) 6.401 6.731
3/8  -16 8 8.15 (80%) 7.798 8.153
7/16 -14 9.4 9.50 (80%) 9.144 9.550
1/2  -13 10.8 11.0  (80%) 10.592 11.023
9/16 -12 12.2 12.3  (85%) 11.989 12.446
5/8  -11 13.6 13.8  (85%) 13.386 13.868
3/4  -10 16.5 16.8  (80%) 16.307 16.840
  7/8  - 9 19.5 19.6  (85%) 19.177 19.761
1 - 8 22.2 22.5  (85%) 21.971 22.606
1 1/8 - 7 25 25.2  (85%) 24.638 25.349
1 1/4 - 7 28.2 28.4  (85%) 27.813 28.524
1 3/8 - 6 30.8 31.0  (85%) 30.353 31.115
1 1/2 - 6 34 34.2  (85%) 33.528 34.290
1 3/4 - 5 39.5 39.8  (85%) 38.964 39.827
2  - 4 45.2 45.3  (90%) 44.679 45.593



4、美制細牙螺紋                                  (單位：mm)
螺纹尺寸钻头直径 2B级螺纹下孔徑內螺紋小徑
最小直径最大直径
NO. 0 -80UNF 1.25 1.30 (65%) 1.182 1.305
1 -72 1.55 1.61 (65%) 1.474 1.612
2 -64 1.85 1.90 (65%) 1.756 1.912
3 -56 2.1 2.17 (70%) 2.025 2.197
4 -48 2.4 2.44 (70%) 2.271 2.458
5 -44 2.7 2.74 (70%) 2.551 2.740
6 -40 2.9 3.02 (70%) 2.820 3.022
8 -36 3.5 3.59 (75%) 3.404 3.606
10 -32 4.1 4.14 (80%) 3.963 4.165
12 -28 4.6 4.70 (80%) 4.496 4.724
1/4  -28 5.5 5.56 (80%) 5.360 5.588
5/16  -24 6.9 7.02 (80%) 6.782 7.035
3/8  -24 8.5 8.61 (80%) 8.382 8.636
7/16  -20 9.9 10.01 (80%) 9.729 10.033
  1/2  -20 11.5 11.60 (80%) 11.329 11.607
9/16  -18 12.9 13.07 (80%) 12.751 13.081
5/8  -18 14.5 14.65 (80%) 14.351 14.681
  3/4  -16 17.5 17.59 (85%) 17.323 17.678
7/8  -14 20.5 20.6  (85%) 20.270 20.675
1 -12 23.2 23.5 (85%) 23.114 23.571
  1 1/8 -12 26.5 26.7 (80%) 26.289 26.746
  1 1/4 -12 29.5 29.9 (80%) 29.464 29.921
  1 3/8 -12 32.8 33.0 (85%) 32.639 33.096
  1 1/2 -12 36 36.2 (85%) 35.814 36.271

5、英制粗牙螺紋                                                    (單位：mm)
螺紋尺寸下  孔  徑嵌  合  率
A列(硬材質) B列(軟材質) A列直徑 B列直徑內螺紋最小徑內螺紋最大徑
W 1/8 2.6 2.5 70.7 83.0 70.0 88.3
3/16 3.7 3.6 78.4 85.8 70.0 88.3
1/4 5.1 5.0 76.9 83.0 70.5 88.3
5/16 6.6 6.5 74.0 99.5 70.1 88.4
3/8 8.0 7.9 75.0 80.0 69.5 88.2
7/16 9.4 9.3 73.7 80.0 69.0 88.8
1/2 10.7 10.5 73.8 81.2 69.0 88.2
9/16 12.3 12.0 73.4 84.4 69.0 88.2
5/8 13.7 13.5 73.5 80.3 69.6 88.5
3/4 16.7 16.5 72.3 78.4 69.6 88.3
7/8 19.5 19.3 75.4 80.9 70.1 88.4
1 22.4 22.0 73.8 83.6 71.0 88.2
1 1/8 25.0 24.8 76.9 81.3 72.0 88.4
1 1/4 28.3 28.0 74.3 80.7 72.0 88.4
1 3/8 30.5 30.3 81.6 85.3 73.8 88.6
1 1/2 33.8 33.5 79.3 84.8 73.8 88.6
1 5/8 36.0 35.7 81.1 85.7 74.8 88.3
1 3/4 39.2 39.0 80.7 83.8 74.8 88.3
1 7/8 41.8 41.5 80.6 84.7 74.7 88.4
2 45.0 44.7 80.2 84.4 74.7 88.4

6、英制管用螺紋                                        (單位：mm)
管用螺紋尺寸 JIS B 0203 JIS B 2301
錐管內螺紋Rc(PT) 平行內螺紋Rp(PS) 錐管內螺紋
計算值下孔徑計算值下孔徑計算值下孔徑
  1/16 6.230 6.2 6.490 6.5 －－
1/8 8.235 8.2 8.495 8.5 8.191 8.2
1/4 10.941 10.9 11.341 11.4 10.945 10.9
3/8 14.428 14.4 14.846 14.9 14.388 14.4
1/2 17.950 18 18.489 18.5 17.943 18
3/4 23.349 23 23.975 24 23.305 23
1 29.423 29 30.111 30 29.353 29
1 1/4 37.940 38 38.772 39 37.890 38
1 1/2 43.833 44 44.565 45 43.720 43
2 55.412 55 56.476 56 55.406 55
2 1/2 70.701 71 72.009 72 70.788 70
3 83.201 83 84.709 85 83.364 83
3 1/2 95.547 96 97.155 97 95.747 95
4 107.834 108 109.855 110 108.322 108
5 133.110 133 135.255 135 133.597 133
6 158.510 159 160.655 161 158.810 158
7 183.360 183 185.954 186
8 208.560 209 211.354 212
9 233.960 234 236.754 237
10 259.166 259 262.154 262
12 309.747 310 312.875 313
7、美制管用耐密斜行螺紋(NPTF‧NPSF)                      (單位：mm)
管用螺紋尺寸斜行螺紋(NPTF) 平行螺紋(NPSF)
鑽頭直徑鑽頭直徑
使用鉸刀場合不使用鉸刀場合
1/16 － 0.234 ( 5.94)      0.246 ( 6.25) 1/4 0.250 ( 6.35)
1/8 21/64 0.328 ( 8.33)            0.339 ( 8.61) 11/32 0.344 ( 8.74)
1/4 27/64 0.422 (10.72) 7/16 0.438 (11.13) － 0.444 (11.28)
3/8 9/16 0.562 (14.27) 37/64 0.578 (14.68) 37/64 0.578 (14.68)
1/2 11/16 0.688 (17.48) 45/64 0.703 (17.86) 23/32 0.719 (18.26)
3/4 57/64 0.891 (22.63) 59/64 0.922 (23.42)          － 0.922 (23.42)
1 1  1/8 1.125 (28.58) 1 5/32 1.156 (29.36) 1  5/32 1.156 (29.36)
1 1/4 1 15/32 1.469 (37.31) 1 1/2 1.500 (38.10) －－
1 1/2 1 45/64 1.703 (43.26) 1  47/64 1.734 (44.04) －－
2 2 3/16 2.188 (55.58) 2 7/32 2.219 (56.36) －－
2 1/2 2 19/32 2.594 (65.89) 2 41/64 2.641 (67.08) －－
上述鑽頭直徑來源於美制管用耐密斜行螺紋ANSI B1.20.3—1957 Dryseal Pipe Threads (Inch)標準
8、公制螺紋(NRT)                                        (單位：mm)
螺紋尺寸 1級螺紋用下孔徑 2級螺紋用下孔徑
RH
精度最小～最大
(嵌合率％) RH
精度最小～最大
(嵌合率％)
M 1 ×0.25 2 0.87 ~ 0.89 (100~85) 4 0.90 ~0.92 (100~80)
1.1×0.25 2 0.97 ~ 0.99 (100~85) 4 1.00 ~1.02 (100~80)
1.2×0.25 2 1.07 ~ 1.09 (100~85) 4 1.10 ~1.12 (100~80)
1.4×0.3 2 1.244~ 1.263  (100~85) 4 1.270~ 1.294 (100~80)
1.7×0.35 2 1.51 ~ 1.54 (100~80) 4 1.54 ~ 1.58 (100~75)
2  ×0.4 2 1.78 ~ 1.82 (100~80) 4 1.81 ~ 1.85 (100~75)
2.3×0.4 2 2.08 ~ 2.12 (100~80) 4 2.11 ~ 2.15 (100~75)
2.5×0.45 2 2.25 ~ 2.29 (100~80) 4 2.28 ~ 2.33 (100~75)
2.6×0.45 2 2.35 ~ 2.39 (100~80) 4 2.38 ~ 2.43 (100~75)
3  ×0.5 3 2.74 ~ 2.78 (100~80) 5 2.76 ~ 2.81 (100~75)
3.5×0.6 3 3.18 ~ 3.21 (100~85) 5 3.20 ~ 3.26 (100~75)
4  ×0.7 4 3.63 ~ 3.67 (100~85) 6 3.65 ~ 3.70 (100~85)
5  ×0.8 4 4.57 ~ 4.62 (100~85) 6 4.59 ~ 4.66 (100~80)
6  ×1 4 5.45 ~ 5.51 (100~85) 7 5.48 ~ 5.57 (100~80)
7  ×1 4 6.45 ~ 6.51 (100~85) 7 6.48 ~ 6.57 (100~80)
8  ×1.25 5 7.31 ~ 7.38 (100~85) 7 7.34 ~ 7.41 (100~85)
8  ×1 4 7.45 ~ 7.51 (100~85) 7 7.48 ~ 7.57 (100~80)
10  ×1.5 5 9.16 ~ 9.22 (100~90) 7 9.18 ~ 9.28 (100~85)
10  ×1.25 5 9.31 ~ 9.38 (100~85) 7 9.34 ~ 9.41 (100~85)
10  ×1 5 9.46 ~ 9.52 (100~85) 7 9.48 ~ 9.57 (100~80)
12  ×1.75 5 11.01 ~11.08 (100~90) 8 11.05 ~11.15 (100~85)
12  ×1.5 5 11.16 ~11.22 (100~90) 7 11.18 ~11.28 (100~85)
12  ×1.25 5 11.31 ~11.38 (100~85) 7 11.34 ~11.41 (100~85)
12  ×1 5 11.46 ~11.52 (100~85) 7 11.48 ~11.57 (100~80)
14  ×2 6 12.83 ~12.95 (100~90) 10 12.92 ~13.04 (100~85)
14  ×1.5 5 13.16 ~13.22 (100~90) 9 13.21 ~13.30 (100~85)
16  ×2 6 14.87 ~14.95 (100~90) 10 14.92 ~15.04 (100~85)
16  ×1.5 5 15.16 ~15.22 (100~90) 9 15.21 ~15.30 (100~80)
18  ×2.5 6 16.57 ~16.67 (100~90) 11 16.63 ~16.78 (100~85)
18  ×1.5 6 17.17 ~17.23 (100~90) 10 17.22 ~17.31 (100~85)
20  ×2.5 6 18.57 ~18.67 (100~90) 11 18.63 ~18.78 (100~85)
20  ×1.5 6 19.17 ~19.23 (100~90) 10 19.22 ~19.31 (100~85)
9、美制粗牙螺紋(NRT)                      (單位：mm)
螺紋尺寸 2B級螺紋用下孔徑 3B級螺紋用下孔徑

橄榄树 · 发表于 2013-8-22 20:10:39

好资料，不过，不适应铸铁件。

叶先生 · 发表于 2013-8-22 20:31:52

好资料，谢谢楼主分享。

贾明 · 发表于 2013-8-22 20:43:46

这就是钳工知识啊，倒是有时候也能用到

新手试维修 · 发表于 2013-8-23 17:37:24

谢谢分享！

lzzhou · 发表于 2013-8-25 18:21:43

楼主辛苦，不过这样贴出来感觉有点乱，要是做成表格，以附件形式发上来会更好些。

砾石 · 发表于 2013-8-25 19:53:38

谢谢分享！虽然不方便查阅

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