英制螺纹对照表完整版

底孔直径 mm
1.15 1.9 2.5 3.2 3.7 4.5 5.1 6.5 7.9 9.2 10.4 13.4 16.25 19.25 22 24.5 27.25 30.25 33.5 35.5 38.5 41.25 44.5 50 56 61.5 68 73.75 80 85.5 92 98 104.2 110 116.5 122.5 128.5
英制普通螺纹 (惠氏螺纹) -- 小螺纹系列 (BA)
大径
螺距
每英寸牙 数
中径
小径
mm
mm
tpi
mm
外螺纹
d=D
p
d2=D2
d3
1
0.23
110.4
0.86
0.72
1.2
0.25
101.6
1.05
0.9
1.3
0.28
90.71
1.13
0.96
1.5
0.31
81.93 1.315
1.13
1.7
0.35
2 2 1/4 2 1/2 2 3/4
3 3 1/4 3 1/2 3 3/4
4 4 1/4
牙型代号 BSF BSF BSF BSF BSF BSF BSF BSF BSF BSF BSF BSF BSF BSF BSF BSF BSF BSF BSF BSF BSF BSF BSF BSF BSF BSF BSF BSF BSF BSF BSF
7.938 1.156
22
7.199 6.459
9.525
1.27
20
8.712 7.899
11.113 1.411
18
10.209 9.304
12.7
1.588
16
11.684 10.668
14.288 1.588
16
13.272 12.256
15.875 1.814
14
14.712 13.549
11 162.351
小径 外螺纹
d3 6.561 8.566 11.445 14.95 18.631 24.117 30.291 38.952 44.845 56.656 72.226 84.926 110.072 135.472 160.872
牙型高度 圆弧尺寸 底孔尺寸
H1
r
mm
0.581 0.581 0.856 0.856 1.162 1.162 1.479 1.479 1.479 1.479 1.479 1.479 1.479 1.479 1.479
英制普通螺纹 (惠氏螺纹) -- 细牙 (BSW)
大径
螺距
每英寸牙 数
中径
小径
mm
mm
tpi
mm
外螺纹
d=D
p
d2=D2
d3
4.763 0.794
32
4.255 3.747
5.556 0.907
28
4.975 4.394
6.35
0.977
26
5.725
5.1
7.142 0.977
26
6.518 5.893
9.677 2 5/8 133.509 127.313
牙型高 H1
0.27 0.338 0.406 0.507 0.677 0.677 0.813 0.904 1.017 1.162 1.355 1.479 1.627 1.807 2.033 2.324 2.324 2.711 2.711 3.253 3.253 3.614 3.614 4.066 4.066 4.647 4.647 5.005 5.005 5.422 5.422 5.657 5.657 5.915 5.915 6.196 6.196
制惠氏螺纹的型式尺寸
英制普通螺纹 (惠氏螺纹) -- 粗牙 (BSW)
螺距
每英寸牙 数
中径
小径
mm
tpi
mm
外螺纹
p
d2=D2
d3
0.423
60
1.315
1.05
0.529
48
2.041 1.703
0.635
40
2.768 2.362
0.793
32
3.459 2.952
1.058
24
4.084 3.407
31.75 2.822
9
29.944 28.138
34.925 3.175
8
32.893 30.861
38.1
3.175
8
36.068 34.036
41.275 3.175
8
39.243 37.211
44.45 3.629
7
42.126 39.802
50.8
3.629
7
48.476 46.152
57.15 4.234
8.467
3
89.832 84.41
8.467
3
96.182 90.76
8.835 2 7/8 102.297 96.639
8.835 2 7/8 108.647 102.99
9.237 2 3/4 114.74 108.625
9.237 2 3/4 121.09 115.176
9.677 2 5/8 127.159 120.963
2.95
0.44
3.4
0.485
3.9
0.54
4.4
0.6
5
55°圆锥管螺纹型式和尺寸
螺纹代号 R 1/16 R 1/8 R 1/4 R 3/8 R 1/2 R 3/4 R1 R 1 1/4 R 1 1/2 R2 R 2 1/2 R3 R4 R5 R6
基本尺寸 英寸
1/16＂ 1/8＂ 1/4＂ 3/8＂ 1/2＂ 3/4＂ 1＂ 1 1/4＂ 1 1/2＂ 2＂ 2 1/2＂ 3＂ 4＂ 5＂ 6＂
5 3/4＂ 6＂
BSW BSW
146.055 152.406
10.16 10.16
2 1/2 2 1/2
139.549 133.043 6.506 145.9 139.394 6.506
134.5 141
英制普通螺纹 -- 细牙 -- BSF
名义尺寸 BSF
3/16 7/32 1/4 9/32 5/16 3/8 7/16 1/2 9/16 5/8 11/16 3/4 13/16 7/8 1.00 1 1/8 1 1/4 1 3/8 1 1/2 1 5/8 1 3/4
5.645 4 1/2 47.187 43.573
6.35
4
53.086 49.02
6.35
4
59.436 55.37
7.257 3 1/2 65.205 60.558
7.257 3 1/2 71.556 66.909
7.816 3 1/4 77.548 72.544
7.816 3 1/4 83.899 78.894
3.66
3.22
4.7
0.81
31.35 4.215
3.73
5.3
0.9
28.22
4.76
4.22
6
1
25.4
5.4
4.8
牙型高 底孔直径
H1
mm
0.14
0.75
0.15
0.95
0.17
1
0.185
1.2
0.21
1.35
0.235
1.5
0.26
1.8
0.29
2
0.32
2.3
0.355
2.6
0.395
17.463 1.814
14
16.3 15.137
19.05 2.117
12
17.693 16.336
20.638 2.117
12
19.281 17.924
22.225 2.309
11
20.747 19.269
25.4
2.54
10
23.774 22.148
28.575 2.822
9
26.769 24.963
1.058
24
4.878 4.201
1.27
20
5.537 4.724
1.411
18
7.034 6.131
1.588
16
8.509 7.492
1.814
14
9.951 8.789
2.117
12
11.345 9.99
2.309
11
14.397 12.918
2.54
10
17.424 15.798
2.822
0.125 0.125 0.184 0.184 0.249 0.249 0.317 0.317 0.317 0.317 0.317 0.317 0.317 0.317 0.317
6.4 8.4 11.2 14.75 18.25 23.75 30 38.5 44.5 56 71 85.5 110.5 136 161.5
（2006-03-13 14:38:47 ）
每英寸牙 数
中径
tpi
mm
d2=D2
28
7.142
28
9.147
19
12.301
19
15.806
14
19.793
14
25.279
11
31.77
11
40.431
11
46.324
11
58.135
11
73.705
11
86.405
11 111.551
11 136.951
9
20.419 18.611
3.175
8
23.368 21.335
3.629
7
26.253 23.929
3.629
7
29.428 27.104
4.233
6
32.215 29.505
4.233
6
35.391 32.68
5.08
5
百度文库
38.024 34.771
5.08
5
41.199 37.946
5.645 4 1/2 44.012 40.398
大径 mm d=D 7.723 9.728 13.157 16.662 20.955 26.441 33.249 41.91 47.803 59.614 75.184 87.884 113.03 138.43 163.83
螺距 mm
p 0.907 0.907 1.337 1.337 1.814 1.814 2.309 2.309 2.309 2.309 2.309 2.309 2.309 2.309 2.309
72.57
1.49
1.28
1.9
0.39
65.12 1.665
1.43
2.2
0.43
59.07
1.94
1.68
2.5
0.48
52.92
2.21
1.92
2.8
0.53
47.92
2.48
2.16
3.2
0.59
43.05 2.845
2.49
3.6
0.66
38.48 3.205
2.81
4.1
0.73
34.79
4 4.6 5.3 6.1 6.8 8.3 9.7 11.1 12.7 14 15.5 16.75 18.25 19.75 22.75 26.5 28.75 31.5 34.5 38 40.5 47 53 59
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55°圆柱管螺纹的型式和尺寸
螺纹代号 G 1/8 G 1/4 G 3/8 G 1/2 G 5/8 G 3/4 G 7/8 G1 G 1 1/8 G 1 1/4 G 1 3/8 G 1 1/2 G 1 3/4 G2 G 2 1/4 G 2 1/2 G 2 3/4 G3 G 3 1/4 G 3 1/2 G 3 3/4 G4 G 4 1/2 G5 G 5 1/2 G6
名义尺寸 BA
No. 14 No. 13 No. 12 No. 11 No. 10 No. 9 No. 8 No. 7 No. 6 No. 5 No. 4 No. 3 No. 2 No. 1 No. 0
牙型代号 BA BA BA BA BA BA BA BA BA BA BA BA BA BA BA
名义尺寸 Ww
1/16＂ 3/32＂ 1/8＂ 5/32＂ 3/16＂ 7/32＂ 1/4＂ 5/16＂ 3/8＂ 7/16＂ 1/2＂ 5/8＂ 3/4＂ 7/8＂
1＂ 1 1/8＂ 1 1/4＂ 1 3/8＂ 1 1/2＂ 1 5/8＂ 1 3/4＂ 1 7/8＂
2＂ 2 1/4＂ 2 1/2＂ 2 3/4＂
3＂ 3 1/4＂ 3 1/2＂ 3 3/4＂
4＂ 4 1/4＂ 4 1/2＂ 4 3/4＂
5＂ 5 1/4＂ 5 1/2＂
牙型代号 BSW BSW BSW BSW BSW BSW BSW BSW BSW BSW BSW BSW BSW BSW BSW BSW BSW BSW BSW BSW BSW BSW BSW BSW BSW BSW BSW BSW BSW BSW BSW BSW BSW BSW BSW BSW BSW
101.6 5.645 4 1/2 97.985 94.37
107.95 6.35
4
103.886 99.822
牙型高 底孔直径
H1
mm
0.508 0.581 0.625 0.625 0.739 0.813 0.904 1.017 1.017 1.162 1.162 1.355 1.355 1.479 1.627 1.807 1.807 2.033 2.033 2.033 2.324 2.324 2.711 2.711 2.711 3.253 3.253 3.614 3.614 3.614 4.066
大径 mm d=D 1.587 2.381 3.175 3.969 4.762 5.556 6.35 7.938 9.525 11.113 12.7 15.876 19.051 22.226 25.4 28.576 31.751 34.926 38.1 41.277 44.452 47.627 50.802 57.152 63.502 69.853 76.203 82.553 88.903 95.254 101.604 107.954 114.304 120.665 127.005 133.355 139.705
6
54.44 51.73
63.5
4.234
6
60.79 58.08
69.85 4.234
6
67.14 64.43
76.2
5.08
5
72.946 69.692
82.55
5.08
5
79.296 76.042
88.9
5.645
4 1/2 85.285 81.67
95.25 5.645 4 1/2 91.635 88.02