英制螺纹标准对照表

3.629 4.233 4.233 5.08 5.08 5.645 5.645 6.35 6.35 7.257 7.257 7.816 7.816 8.467 8.467 8.835 8.835 9.237 9.237 9.677 9.677 10.16 10.16
7 6 6 5 5 4 1/2 4 1/2 4 4 3 1/2 3 1/2 3 1/4 3 1/4 3 3 2 7/8 2 7/8 2 3/4 2 3/4 2 5/8 2 5/8 2 1/2 2 1/2
小径 牙型高度 圆弧尺寸 底孔尺寸
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
tpi
mm
外螺纹
H1
r
mm
d2=D2
d3
28
7.142 6.561
0.581 0.125
每英寸牙 数 tpi
中径 mm
小径 外螺纹
d=D
p
d2=D2
d3
BA
1
0.23
110.4
0.86
0.72
BA
1.2
0.25
101.6
1.05
0.9
BA
1.3
0.28
90.71
1.13
0.96
BA
1.5
0.31
81.93 1.315
1.13
BA
1.7
0.35
72.57
1.49
1.28
BA
1.9
0.39
英制螺纹标准对照表
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
英制普通螺纹 (惠氏螺纹 ) -- 小螺纹系列 (BA)
牙型代号
大径 mm
螺距 mm
8
23.368 21.335 2.033
22
7
26.253 23.929 2.324
24.5
2
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 ＂
英制普通螺纹 (惠氏螺纹 ) -- 粗牙 (BSW)
大径 牙型代号
mm
螺距 mm
每英寸牙 数
中径
tpi
mm
小径 外螺纹
d=D
p
d2=D2 d3
BSW 1.587 0.423 60
1.315 1.05
BSW 2.381 0.529 48
2.041 1.703
BSW 3.175 0.635 40
2.768 2.362
2＂ 2 1/2 ＂
3＂ 4＂ 5＂ 6＂
55 °圆锥管螺纹型式和尺寸
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 每英寸牙数 中径
底孔尺 寸 mm
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
名义尺寸 牙型代号
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 ＂
86.405 84.926 1.479 0.317
85.5
11
111.551 110.072 1.479 0.317 110.5
11
136.951 135.472 1.479 0.317
136
11
162.351 160.872 1.479 0.317 161.5
1
基本尺寸 螺纹代号
英寸
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
1＂ 1 1/8 ＂
BSW BSW BSW BSW BSW BSW BSW BSW BSW BSW BSW BSW BSW BSW BSW BSW
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
tpi
mm
外螺纹
H1
mm
d2=D2
d3
60
1.315
1.05
0.27
1.15
48
2.041
1.703
0.338
1.9
40
2.768
2.362
0.406
2.5
32
3.459
2.952
0.507
3.2
24
4.084
3.407
0.677
3.7
24
4.878
4.201
0.677
4.5
20
5.537
4.724
27.104 29.505 32.68 34.771 37.946 40.398 43.573 49.02 55.37 60.558 66.909 72.544 78.894 84.41 90.76 96.639 102.99 108.625 115.176 120.963 127.313 133.043 139.394
6.4
28
9.147 8.566
0.581 0.125
8.4
19
12.301 11.445 0.856 0.184
11.2
19
15.806 14.95
0.856 0.184 14.75
14
19.793 18.631 1.162 0.249 18.25
14
25.279 24.117 1.162 0.249 23.75
8.509 7.492
BSW 11.113 1.814 14
9.951 8.789
BSW 12.7
2.117 12
11.345 9.99
BSW 15.876 2.309 11
14.397 12.918
BSW 19.051 2.54
10
17.424 15.798
5＂ 5 1/4 ＂ 5 1/2 ＂ 5 3/4 ＂
6＂
BSW BSW BSW BSW BSW BSW BSW BSW BSW BSW BSW BSW BSW BSW BSW BSW BSW BSW BSW BSW BSW BSW BSW
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
29.428 32.215 35.391 38.024 41.199 44.012 47.187 53.086 59.436 65.205 71.556 77.548 83.899 89.832 96.182 102.297 108.647 114.74 121.09 127.159 133.509 139.549 145.9
11
31.77 30.291 1.479 0.317
30
11
40.431 38.952 1.479 0.317
38.5
11
46.324 44.845 1.479 0.317
44.5
11
58.135 56.656 1.479 0.317
56
11
73.705 72.226 1.479 0.317
71
11
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
每英寸牙 数 tpi
28 28 19 19 14 14 11 11 11 11 11 11 11 11 11
中径
BSW 3.969 0.793 32
3.459 2.952
BSW 4.762 1.058 24
4.084 3.407
BSW 5.556 1.058 24
4.878 4.201
BSW 6.35
1.27
20
5.537 4.724
BSW 7.938 1.411 18
7.034 6.131
BSW 9.525 1.588 16
制惠氏螺纹的型式尺寸
螺距
mm p
0.423 0.529 0.635 0.793 1.058 1.058 1.27 1.411 1.588 1.814 2.117 2.309 2.54 2.822 3.175 3.629
英制普通螺纹 (惠氏螺纹 ) -- 粗牙 (BSW)
每英寸牙 数
中径
小径
牙型高 底孔直径
mm d2=D2 7.142 9.147 12.301 15.806 19.793 25.279 31.77 40.431 46.324 58.135 73.705 86.405 111.551 136.951 162.351
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
BA
4.7
0.81
31.35 4.215
3.73
BA
5.3
0.9
28.22
4.76
4.22
BA
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
2.95
50 56 61.5 68 73.75 80 85.5 92 98 104.2 110 116.5 122.5 128.5 134.5 141
制惠氏螺纹的型式尺寸
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 ＂
0.44
3.4
0.485
3.9
0.54
4.4
0.6
5
螺纹代号
基本尺寸 英寸
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
1/16 ＂ 1/8 ＂ 1/4 ＂ 3/8 ＂ 1/2 ＂ 3/4 ＂
1＂ 1 1/4 ＂ 1 1/2 ＂
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
27.25 30.25 33.5 35.5 38.5 41.25 44.5
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
圆弧尺寸
r
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
0.813来自百度文库
5.1
18
7.034
6.131
0.904
6.5
16
8.509
7.492
1.017
7.9
14
9.951
8.789
1.162
9.2
12
11.345
9.99
1.355
10.4
11
14.397 12.918 1.479
13.4
10
17.424 15.798 1.627 16.25
9
20.419 18.611 1.807 19.25
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＂
55 °圆锥管螺纹型式和尺寸
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
65.12 1.665
1.43
BA
2.2
0.43
59.07
1.94
1.68
BA
2.5
0.48
52.92
2.21
1.92
BA
2.8
0.53
47.92
2.48
2.16
BA
3.2
0.59
43.05 2.845
2.49
BA
3.6
0.66
38.48 3.205
2.81
BA
4.1
0.73
34.79
3.66
3.22