英制螺丝规格对照表

英制普通螺纹 (惠氏螺纹) -- 小螺纹系列 (BA)
大径
每英寸牙
螺距
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
螺纹代号 基本尺寸
G 1/8
1/8＂
G 1/4
1/4＂
55°圆柱管螺纹的型式和尺寸
British Pipe Thread (惠氏管螺纹) -- 圆柱 (BSPP/BSPF)
大径
每英寸牙
螺距
数
中径
小径 牙型高度
mm
mm
tpi
mm 外螺纹
H1
d=D
p
d2=D2
d3
9.728 0.907
28
9.147 8.566 0.581
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
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 95.254 101.604 107.954 114.304 120.665 127.005 133.355 139.705 146.055 152.406
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 H1
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
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
101.6 5.645 4 1/2 97.985 94.37
107.95 6.35
4
103.886 99.822
牙型高 H1
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
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＂
英制普通螺纹 (惠氏螺纹) -- 细牙 (BSW)
大径
每英寸牙
螺距
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
3/8＂ 1/2＂ 5/8＂ 3/4＂ 7/8＂ 1＂ 1 1/8＂ 1 1/4＂ 1 3/8＂ 1 1/2＂ 1 3/4＂ 2＂ 2 1/4＂ 2 1/2＂ 2 3/4＂ 3＂ 3 1/4＂ 3 1/2＂ 3 3/4＂ 4＂ 4 1/2＂ 5＂ 5 1/2＂ 6＂
16.662 20.955 22.911 26.441 30.201 33.249 37.897 41.91 44.323 47.803 53.746 59.614 65.71 75.184 81.534 87.884 93.98 100.33 106.68 113.03 125.73 138.43 151.13 163.83
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
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
38.024 34.771
5.08
5
41.199 37.946
5.645 4 1/2 44.012 40.398
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＂ 5 3/4＂
6＂
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 BSW BSW
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
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
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
2 2 1/4 2 1/2 2 3/4
13.157 1.337
19
12.301 11.445 0.856
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
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
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
Hale Waihona Puke Baidu
2.54
10
17.424 15.798
2.822
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
9.677 2 5/8 133.509 127.313
10.16 2 1/2 139.549 133.043
10.16 2 1/2 145.9 139.394
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 6.506 6.506
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
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＂
（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
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
制惠氏螺纹的型式尺寸
英制普通螺纹 (惠氏螺纹) -- 粗牙 (BSW)
每英寸牙
螺距
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
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 H1
0.14 0.15 0.17 0.185 0.21 0.235 0.26 0.29 0.32 0.355 0.395 0.44 0.485 0.54 0.6
55°圆锥管螺纹型式和尺寸