Sheet3
Sheet2
英制管螺纹
美制管螺纹
规格
标准径
钻孔径
有交牙部之长度（最小）中之毋螺牙内径
标准长度（最小）中之毋螺牙内径
最大
最小
使用绞刀时
不用绞刀时
NPT
NPS
PS1/16-28
PT1/16-28
1/16-27
PS1/8-28
PT1/8-28
PS1/4-19
PT1/4-19
PS3/8-19
PT3/8-19
PS1/2-14
PT1/2-14
PS3/4-14
PT3/4-14
PS1-11
PT1-11
1-11-1/2
PS1-1/4-11
PT1-1/4-11
1-1/4-11-1/2
PS1-1/2-11
PT1-1/2-11
1-1/2-11-1/2
PS2-11
PT2-11
2-11-1/2
螺丝攻牙钻孔径和滚丝径规格对照表
螺丝攻牙钻孔径和滚丝径对照表
公制粗螺纹
美制粗螺纹
2级牙钻孔径
规格（UNC）
M1.0×0.25
NO.1-64(1.854)
M1.1×0.25
NO.2-56(2.184)
M1.2×0.25
NO.3-48(2.515)
M1.4×0.3
NO.4-40(2.845)
M1.6×0.35
NO.5-40(3.175)
M1.7×0.35
NO.6-32(3.505)
M1.8×0.35
NO8-32(4.166)
M2.0×0.4
NO.10-24(4.826)
M2.2×0.45
NO.12-24(5.486)
M2.3×0.4
M2.5×0.45
5/16-18
M2.6×0.45
M3.0×0.5
7/16-14
M3.0×0.6
M3.5×0.6
9/16-12
M4.0×0.7
M4.0×0.75
M4.5×0.75
M5.0×0.8
M5.0×0.9
1-1/8-7
M6.0×1.0
1-1/4-7
M7.0×1.0
1-3/8-6
M8.0×1.25
1-1/2-6
M9.0×1.25
1-3/4-5
M10×1.5
2-4-1/2
M11×1.5
M12×1.75
M14×2.0
M16×2.0
M18×2.5
M20×2.5
M22×2.5
M24×3.0
M27×3.0
M30×3.5
公制细螺纹
美制细螺纹
M1.0×0.2
NO.0-80(1.524)
M1.1×0.2
NO.1-72(1.854)
M1.2×0.2
NO.2-64(2.184)
M1.4×0.2
NO.3-56(2.515)
M1.6×0.2
NO.4-48(2.845)
M1.7×0.2
NO.5-44(3.175)
M1.8×0.2
NO.6-40(3.505)
M2.0×0.25
NO.8-36(4.166)
M2.2×0.25
NO.10-32(4.826)
M2.3×0.25
NO.12-28(5.846)
M2.5×0.35
M2.6×0.35
5/16-24
M3.0×0.35
M3.5×0.35
7/16-20
M4.0×0.5
M4.5×0.5
9/16-18
M5.0×0.5
M5.5×0.5
M6.0×0.75
M6.0×0.5
M7.0×0.75
1-1/8-12
M7.0×0.5
1-1/4-12
M8.0×1.0
1-3/8-12
M8.0×0.75
1-1/2-12
M8.0×0.5
M9.0×1.0
M9.0×0.75
M10×1.25
M10×1.0
M10×0.75
M10×0.5
M11×1.0
M11×0.75
M12×1.5
M12×1.25
M12×1.0
M12×0.5
M14×1.5
M14×1.0
M15×1.5
M15×1.0
M16×1.5
M16×1.0
M17×1.5
M17×1.0
M18×2.0
M18×1.5
M18×1.0
M20×2.0
M20×1.5
M20×1.0
M22×2.0
M22×1.5
M22×1.0
M24×2.0
M24×1.5
M24×1.0
M25×2.0
M25×1.5
M25×1.0
M26×1.5
M27×2.0
M27×1.5
M27×1.0
M28×2.0
M28×1.5
M28×1.0
M30×3.0
M30×2.0
M30×1.5
M30×1.0
M32×2.0
M32×1.5
M33×3.0
M33×2.0
M33×1.5
M35×1.5
M36×3.0
M36×2.0
M36×1.5
公制挤压丝攻钻孔径
美制挤压丝攻钻孔径
精度等级
G4-G6
G7-G8
G9
－
NO.2-56UNC
NO.3-48
NO.4-40
NO.5-40
NO.6-32
NO.8-32
NO.10-24
NO.12-24
NO.2-64UNF
NO.3-56
NO.4-48
NO.5-44
NO.6-40
NO.8-36
NO.10-32
NO.12-28
美制特细螺纹
英制电器螺纹
NO.12-32
2BA
4.0-4.2
1/4-32
3BA
5/16-32
4BA
3.0-3.2
3/8-32
5BA
2.7-2.8
7/16-28
6BA
2.4-2.5
9/16-24
英制螺纹
公制螺纹
针车用螺纹
规格(UNEF)
滚丝径
硬材
软材
W1/8-40
M3×0.5
2.63-2.60
SM1/8-40
2.735-2.688
W5/32-32
2.56-2.53
SM1/8-44
2.769-2.722
W3/16-24
3.06-3.03
SM9/64-40
3.128-3.083
W1/4-20
3.49-3.45
SM11/64-40
3.855-3.805
W5/16-18
3.45-3.41
SM3/16-32
4.205-4.155
W3/8-16
3.96-3.92
SM3/16-28
4.143-4.093
W7/16-14
4.43-4.38
SM7/32-32
5.003-4.955
W1/2-12
4.36-4.31
SM15/64-28
5.325-5.570
W9/16-12
5.30-5.25
SM1/4-40
5.890-5.735
W5/8-11
6.30-6.25
SM1/4-28
5.721-5.366
W3/4-10
7.28-7.23
SM9/32-28
6.508-6.648
W7/8-9
7.12-7.07
SM11/32-28
8.092-8.432
W1-8
SM3/8-28
8.880-8.015
W1-1/8-7
SM7/16-28
10.466-10.401
W1-1/4-7
SM7/16-16
10.037-9.967
SM1/2-20
11.819-11.749
SM9/26-20
13.400-13.425
螺丝攻牙钻孔径和滚丝径规格对照表(2)
.75
.79
.73
1.55
1.58
1.43
.85
.89
.83
1.80
1.87
1.70
.95
.99
.99
2.10
2.15
1.94
1.10
1.14
1.08
2.30
2.39
2.16
1.25
1.32
1.22
2.60
2.70
2.49
1.35
1.42
1.32
2.80
2.90
2.64
1.45
1.52
1.42
3.40
3.53
3.30
1.60
1.68
1.57
3.90
3.96
3.68
1.75
1.84
1.71
4.50
4.60
4.34
1.90
1.98
1.87
?2001?/?4?/?20
5.10
5.26
4.98
2.10
2.14
2.01
6.60
6.73
6.40
2.20
2.24
2.11
?2003?/?8?/?16
8.00
8.15
7.80
2.50
2.60
2.46
9.40
9.55
9.14
2.40
2.44
2.28
?2001?/?2?/?13
10.80
11.02
10.59
2.90
3.01
2.85
12.20
12.45
11.99
3.30
3.42
3.24
?2005?/?8?/?11
13.60
12.87
13.39
3.25
3.33
3.11
?2003?/?4?/?10
16.50
18.84
16.31
3.80
3.88
3.69
?2007?/?8?/?9
19.50
19.76
19.18
4.20
4.33
4.13
1.00
22.20
22.61
21.97
4.10
4.17
3.93
25.00
25.35
24.64
5.00
5.15
4.92
28.20
28.52
27.81
6.00
6.15
5.92
30.80
31.11
30.35
6.80
6.91
6.65
34.00
34.29
33.53
7.80
7.91
7.65
39.50
39.83
38.96
8.50
8.68
8.38
45.20
45.59
44.68
9.50
9.68
9.38
10.30
10.44
10.11
12.00
12.21
11.84
14.00
14.21
13.84
15.50
15.74
15.29
17.50
17.74
17.29
19.50
19.74
19.29
21.00
21.25
20.75
24.00
24.25
23.75
26.50
26.77
26.21
.80
.82
.78
1.25
1.31
1.18
.90
.92
.88
1.55
1.61
1.47
1.00
1.02
.98
1.85
1.91
1.76
1.20
1.22
1.18
2.10
2.20
2.03
1.40
1.42
1.38
2.40
2.46
2.27
1.45
1.50
1.46
2.70
2.74
2.55
1.60
1.62
1.58
2.90
3.02
2.82
1.75
1.79
1.73
3.50
3.61
3.40
1.95
1.99
1.93
4.10
4.17
3.96
2.05
2.06
2.00
4.60
4.72
4.50
2.20
2.22
2.12
?2001?/?4?/?28
5.50
5.59
5.36
2.20
2.25
2.19
6.90
7.04
6.78
2.70
2.72
2.62
?2003?/?8?/?24
8.50
8.64
8.38
3.20
3.22
3.12
9.90
10.03
9.73
3.50
3.60
3.46
?2001?/?2?/?20
11.50
11.61
11.33
4.00
4.10
3.96
12.90
13.08
12.75
4.50
4.60
4.46
?2005?/?8?/?18
14.50
14.68
14.35
5.00
5.10
4.96
?2003?/?4?/?16
17.50
17.68
17.32
5.30
5.38
5.19
?2007?/?8?/?14
20.50
20.68
20.27
5.50
5.55
5.40
?2014?/?1?/?12
23.20
23.57
23.11
6.30
6.38
6.19
26.50
26.75
26.29
6.50
6.55
6.40
29.50
29.92
29.46
7.00
7.15
6.92
32.80
33.10
32.64
7.30
7.38
7.19
36.00
36.27
35.81
7.50
7.52
7.40
8.00
8.15
7.92
8.30
8.38
8.19
8.80
8.91
8.65
9.00
9.15
8.92
9.30
9.38
9.19
9.50
9.52
9.40
10.00
10.15
9.92
10.30
10.38
10.19
10.50
10.68
10.38
10.80
10.91
10.65
11.00
11.15
10.92
11.50
11.52
11.40
12.50
12.68
12.38
13.00
13.15
12.92
13.50
13.68
13.38
14.00
14.15
13.92
14.50
14.68
14.38
15.00
15.15
14.92
15.50
15.68
15.38
16.00
16.15
15.92
16.00
16.21
15.84
16.50
16.68
16.38
17.00
17.15
16.92
18.00
18.21
17.84
18.50
18.68
18.38
19.00
19.15
18.92
20.00
20.21
19.84
20.50
20.68
20.38
21.00
21.15
20.92
22.00
22.21
21.84
22.50
22.68
22.38
23.00
23.15
22.92
23.00
23.21
22.84
23.50
23.68
23.38
24.00
24.15
23.92
24.50
24.68
24.38
25.00
25.21
24.84
25.50
25.68
25.38
26.00
26.15
25.92
26.00
26.21
25.84
26.50
26.68
26.38
27.00
27.15
26.92
27.00
27.25
26.75
28.00
28.21
27.84
28.50
28.68
28.38
29.00
29.15
28.92
30.00
30.21
29.84
30.50
30.68
30.38
30.00
30.25
29.75
31.00
31.21
30.84
31.50
31.68
31.38
33.50
33.68
33.38
33.00
33.25
32.75
34.00
34.21
33.84
34.50
34.68
34.38
.86
.88
1.94
.96
.98
2.23
1.06
1.08
2.50
1.24
1.25
2.83
1.41
1.43
3.07
1.51
1.53
3.73
3.77
1.61
1.63
4.24
4.30
1.78
1.80
4.90
4.96
1.95
1.98
?2001?/?4?/?20
5.72
2.08
2.10
7.24
2.25
2.28
?2003?/?8?/?16
8.74
8.81
2.35
2.38
10.20
10.30
2.73
2.75
?2001?/?2?/?13
11.27
11.82
3.17
3.20
1.97
3.62
3.65
3.69
2.27
4.56
4.60
4.64
2.56
5.45
5.50
5.55
2.86
6.45
6.50
6.55
3.16
7.31
7.38
7.44
3.78
9.18
9.25
9.32
4.39
4.43
9.31
9.38
9.44
4.99
5.04
11.04
11.12
11.21
?2001?/?4?/?28
5.85
5.90
11.31
11.38
11.44
7.36
7.41
?2003?/?8?/?24
9.00
10.48
10.54
?2001?/?2?/?20
12.07
12.13
4.70
4.83
4.62
5.60
5.69
5.49
7.10
7.26
7.09
8.70
8.87
8.66
10.20
10.34
10.14
?2001?/?2?/?28
11.80
11.94
11.71
13.20
13.39
13.13
?2005?/?8?/?24
14.80
14.99
14.73
?2003?/?4?/?20
17.80
17.96
17.68
?2007?/?8?/?20
21.00
21.13
20.85
?2014?/?1?/?20
24.00
24.31
24.03
2.65
2.60
3.25
3.20
3.75
3.70
5.10
5.00
6.60
6.50
8.00
7.90
9.40
9.30
10.70
10.50
12.30
12.00
13.70
13.50
16.70
16.50
19.50
19.30
22.40
22.00
25.00
24.80
28.30
28.00
6.50
6.63
6.49
6.10
6.20
6.24
6.38
6.10
6.25
6.35
8.50
8.64
8.50
8.10
8.20
8.25
8.39
?2001?/?8?/?27
8.33
8.43
8.74
11.40
11.55
11.34
10.70
11.00
10.96
11.17
?2001?/?4?/?18
10.72
11.13
11.13
15.00
15.05
14.85
14.20
14.50
14.45
14.66
?2003?/?8?/?18
14.27
14.27
14.68
18.50
18.77
18.49
17.60
18.00
17.98
18.26
?2001?/?2?/?14
17.48
17.86
18.26
24.00
24.26
23.98
23.00
23.50
23.38
23.66
?2003?/?4?/?14
22.63
23.01
23.42
30.20
30.47
30.11
29.00
29.50
29.46
29.82
28.58
28.98
29.36
38.80
39.13
38.77
37.50
38.00
37.98
38.34
37.31
37.69
38.10
44.80
45.02
44.66
43.40
44.00
43.87
44.23
43.66
44.04
44.45
56.50
56.84
56.48
54.90
55.50
55.41
55.84
55.58
55.96
56.36
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