公制螺纹(60°牙型角普通螺纹)/DIN3852,ISO6149
|
M
|
d2
|
d3
最小
|
d4
|
d5
|
a1
最大
|
t2
|
t1
最小
|
b1
最小
|
α±1°
|
|
M8*1
|
10.9
|
17
|
11
|
9.1
|
1.0
|
1.6
|
11.5
|
10.0
|
12°
|
|
M10*1
|
12.9
|
20
|
13
|
11.1
|
1.0
|
1.6
|
11.5
|
10.0
|
12°
|
|
M12*1.5
|
16.9
|
22
|
16
|
13.8
|
1.5
|
2.4
|
14.0
|
11.5
|
15°
|
|
M14*1.5
|
18.9
|
25
|
18
|
15.8
|
1.5
|
2.4
|
14.0
|
11.5
|
15°
|
|
M16*1.5
|
20.9
|
27
|
20
|
17.8
|
1.5
|
2.4
|
15.5
|
13.0
|
15°
|
|
M18*1.5
|
22.9
|
29
|
22
|
19.8
|
2.0
|
2.4
|
16.5
|
14.5
|
15°
|
|
M20*1.5
|
24.9
|
32
|
24
|
21.8
|
2.0
|
2.4
|
16.5
|
14.0
|
15°
|
|
M22*1.5
|
26.9
|
34
|
26
|
23.8
|
2.0
|
2.4
|
18.0
|
15.5
|
15°
|
|
M26*1.5
|
30.9
|
37
|
31
|
29.1
|
2.0
|
3.1
|
18.5
|
16.0
|
15°
|
|
M27*2
|
31.9
|
40
|
32
|
29.4
|
2.0
|
3.1
|
22.0
|
19.0
|
15°
|
|
M33*2
|
37.9
|
46
|
38
|
35.4
|
2.5
|
3.1
|
22.0
|
19.0
|
15°
|
|
M42*2
|
47.9
|
56
|
47
|
44.4
|
2.5
|
3.1
|
22.5
|
19.5
|
15°
|
|
M48*2
|
54.9
|
64
|
53
|
50.4
|
2.5
|
3.1
|
25.0
|
22.0
|
15°
|
美制UNF/UN螺纹(60°牙型角)/SAE J 514,ISO11926
|
U
|
d2
|
d3
最小
|
d4
|
d5+0.1
|
a1
最大
|
t2
|
t1
最小
|
b1
最小
|
α±1°
|
|
7/16-20UNF
|
14.4
|
21
|
15
|
12.4
|
1.6
|
2.4
|
14.0
|
11.5
|
12°
|
|
9/16-18UNF
|
17.6
|
25
|
18
|
15.6
|
1.6
|
2.5
|
15.5
|
12.7
|
12°
|
|
3/4-16UNF
|
22.3
|
30
|
23
|
20.6
|
2.4
|
2.5
|
17.5
|
14.3
|
15°
|
|
7/8-14UNF
|
25.5
|
34
|
26
|
23.9
|
2.4
|
2.5
|
20.0
|
16.7
|
15°
|
|
11/16-12UN
|
31.9
|
41
|
32
|
29.2
|
2.4
|
3.3
|
23.0
|
19.0
|
15°
|
|
15/16-12UN
|
38.2
|
49
|
39
|
35.5
|
3.2
|
3.3
|
23.0
|
19.0
|
15°
|
|
15/8-12UN
|
47.7
|
58
|
48
|
43.5
|
3.2
|
3.3
|
23.0
|
19.0
|
15°
|
55°密封圆锥管螺纹(ISO7-1)英制R外螺纹、Rc内螺纹(老标准PT螺纹、ZG螺纹)
|
R
|
t3
最小
|
t4
最小
|
t5
最小
|
耐压
bar
|
|
R1/8″
|
11.1
|
7.5
|
6.5
|
360
|
|
R1/4″
|
15.1
|
11.1
|
9.7
|
360
|
|
R3/8″
|
15.5
|
11.5
|
10.1
|
360
|
|
R1/2″
|
19.6
|
15.1
|
13.2
|
360
|
|
R3/4″
|
21.0
|
16.4
|
14.5
|
350
|
|
R1″
|
24.2
|
19.2
|
16.8
|
320
|
|
R11/4″
|
26.5
|
21.5
|
19.1
|
310
|
|
R11/2″
|
26.5
|
21.5
|
19.1
|
280
|
|
R2″
|
31.0
|
26.0
|
23.4
|
280
|
60°密封圆锥管螺纹，美制NPT螺纹(NPTF干密封螺纹需垂询)
|
NPT
|
t3
最小
|
t4
最小
|
t5
最小
|
耐压
Bar
|
|
1/8-27
|
11.6
|
8.0
|
7.0
|
420
|
|
1/4-18
|
15.5
|
11.5
|
10.0
|
420
|
|
3/8-18
|
15.8
|
11.8
|
10.4
|
420
|
|
1/2-14
|
20.0
|
15.5
|
13.6
|
420
|
|
3/4-14
|
20.5
|
16.0
|
14.1
|
350
|
|
1-11.5
|
24.0
|
19.0
|
16.8
|
320
|
|
11/4-11.5
|
24.5
|
19.5
|
17.3
|
280
|
|
11/2-11.5
|
24.5
|
19.5
|
17.3
|
250
|
压力表螺纹接口（GB/T1226-2001）
|
d
|
L(mm)
|
d1(mm)
|
|
M10*1
|
10
|
4
|
|
M14*1.5
|
14
|
5
|
|
M20*1.5
|
20
|
6
|
