各種螺牙尺寸表
|
SAE/MS直管螺紋 |
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|
螺紋尺寸 |
螺紋 |
基本面上的螺紋直徑 |
牙型 |
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|
（英吋） |
大徑 |
中徑 |
小徑 |
||
|
5/16 |
24 |
7.938 |
7.249 |
6.792 |
60 |
|
7/16 |
20 |
11.113 |
10.287 |
9.738 |
|
|
1/2 |
20 |
12.7 |
11.875 |
11.325 |
|
|
9/16 |
18 |
14.288 |
13.325 |
12.559 |
|
|
3/4 |
16 |
19.05 |
18.019 |
17.331 |
|
|
1-1/16 |
12 |
26.988 |
25.613 |
24.695 |
|
|
1-5/16 |
12 |
33.338 |
31.963 |
31.046 |
|
|
SAE/MS直管螺紋接頭的允許壓力額定值 |
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|
螺紋尺寸 |
螺紋 |
不可定位 |
位置可調型 |
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|
（英吋） |
psig |
Mpa |
psig |
Mpa |
|
|
5/16 |
24 |
4568 |
31.5 |
4568 |
31.5 |
|
7/16 |
20 |
4568 |
31.5 |
4568 |
31.5 |
|
1/2 |
20 |
4568 |
31.5 |
3626 |
25 |
|
9/16 |
18 |
4568 |
31.5 |
3626 |
25 |
|
3/4 |
16 |
4568 |
31.5 |
3626 |
25 |
|
1-1/16 |
12 |
3626 |
25 |
2900 |
20 |
|
1-5/16 |
12 |
2900 |
20 |
2320 |
10 |
|
BSP、Rp、G、PF、BSPT錐管螺紋 |
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|
螺紋尺寸 |
螺紋 |
基本面上的螺紋直徑 |
牙型 |
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|
（英吋） |
大徑 |
中徑 |
小徑 |
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|
1/16 |
28 |
7.732 |
7.142 |
6.561 |
55 |
|
1/8 |
28 |
9.782 |
9.147 |
8.566 |
|
|
1/4 |
19 |
13.157 |
12.301 |
11.455 |
|
|
3/8 |
19 |
16.662 |
15.806 |
14.95 |
|
|
1/2 |
14 |
20.955 |
19.793 |
18.631 |
|
|
5/8 |
14 |
22.911 |
21.749 |
20.587 |
|
|
3/4 |
14 |
26.441 |
25.279 |
24.117 |
|
|
7/8 |
14 |
30.201 |
29.039 |
27.877 |
|
|
1 |
11 |
33.249 |
31.77 |
30.291 |
|
|
1-1/8 |
11 |
37.897 |
36.418 |
34.939 |
|
|
1-1/4 |
11 |
41.91 |
40.431 |
38.952 |
|
|
1-1/2 |
11 |
47.803 |
46.324 |
44.845 |
|
|
1-3/4 |
11 |
53.746 |
52.267 |
50.788 |
|
|
2 |
11 |
59.614 |
58.135 |
56.656 |
|
|
M公制直螺紋 |
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|
螺紋尺寸 |
螺紋 |
基本面上的螺紋直徑 |
牙型 |
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|
（MM） |
大徑 |
中徑 |
小徑 |
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|
M6 |
|
6 |
5.35 |
4.917 |
60 |
|
M8 |
8 |
7.35 |
6.917 |
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|
M10 |
10 |
9.35 |
8.917 |
||
|
M12 |
|
12 |
11.03 |
10.376 |
|
|
M14 |
14 |
13.03 |
12.376 |
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|
M16 |
16 |
15.03 |
14.376 |
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|
M18 |
18 |
17.03 |
16.376 |
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|
M20 |
20 |
19.03 |
18.376 |
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|
M22 |
22 |
21.03 |
20.376 |
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|
M24 |
24 |
23.03 |
22.376 |
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|
M27 |
|
27 |
25.7 |
24.835 |
|
|
M30 |
30 |
28.7 |
27.835 |
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|
M33 |
33 |
31.7 |
30.835 |
||
|
M36 |
36 |
34.7 |
33.835 |
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|
NPT、Z錐管螺紋 |
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|
螺紋尺寸 |
螺紋 |
基本面上的螺紋直徑 |
牙型 |
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|
（英吋） |
大徑 |
中徑 |
小徑 |
||
|
1/16 |
27 |
7.894 |
7.142 |
6.398 |
60 |
|
1/8 |
27 |
10.242 |
9.489 |
8.737 |
|
|
1/4 |
18 |
13.616 |
12.487 |
11.358 |
|
|
3/8 |
18 |
17.055 |
15.926 |
14.797 |
|
|
1/2 |
14 |
21.224 |
19.772 |
18.321 |
|
|
3/4 |
14 |
26.569 |
25.117 |
23.666 |
|
|
1 |
11.5 |
33.228 |
31.461 |
29.694 |
|
|
1-1/4 |
11.5 |
41.985 |
40.218 |
38.454 |
|
|
1-1/2 |
11.5 |
48.054 |
46.287 |
44.52 |
|
|
2 |
11.5 |
60.092 |
58.325 |
56.558 |
|
|
BSR、R、R1、Re、ZG、RT、PT、BSRT錐管螺紋 |
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|
螺紋尺寸 |
螺紋 |
基本面上的螺紋直徑 |
牙型 |
||
|
（英吋） |
大徑 |
中徑 |
小徑 |
||
|
1/16 |
28 |
7.723 |
7.142 |
6.561 |
55 |
|
1/8 |
28 |
9.728 |
9.147 |
8.566 |
|
|
1/4 |
19 |
13.157 |
12.3 |
11.445 |
|
|
3/8 |
19 |
16.662 |
15.81 |
14.95 |
|
|
1/2 |
14 |
20.995 |
19.79 |
18.631 |
|
|
3/4 |
14 |
26.441 |
25.28 |
24.117 |
|
|
1 |
11 |
33.249 |
31.77 |
30.291 |
|
|
1-1/4 |
11 |
41.91 |
40.43 |
38.952 |
|
|
1-1/2 |
11 |
47.803 |
46.32 |
44.845 |
|
|
2 |
11 |
59.641 |
58.14 |
56.656 |
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