|
代号
|
公称直径d
|
螺距
|
|
d1
|
l
|
L
|
方头
|
|
|
|
粗牙
|
细牙
|
粗牙
|
细牙
|
h9①
|
max
|
h16
|
aH11②
|
l2±0.8
|
|
|
M3
|
M3×0.35
|
3.0
|
0.5
|
0.35
|
2.24
|
11
|
66
|
1.8
|
4
|
|
M3.5
|
M3.5×0.35
|
3.5
|
0.6
|
2.50
|
13
|
68
|
2.0
|
||
|
M4
|
M4×0.5
|
4.0
|
0.7
|
0.5
|
3.15
|
73
|
2.5
|
5
|
|
|
M4.5
|
M4.5×0.5
|
4.5
|
0.75
|
3.55
|
2.8
|
||||
|
M5
|
M5×0.5
|
5.0
|
0.8
|
4.00
|
16
|
79
|
3.15
|
6
|
|
|
－
|
M5.5×0.5
|
5.5
|
－
|
17
|
84
|
||||
|
M6
|
M6×0.75
|
6
|
1
|
0.75
|
4.50
|
19
|
89
|
3.55
|
|
|
M7
|
M7×0.75
|
7
|
5.60
|
4.5
|
7
|
||||
|
M
|
M8×1.0
|
8
|
1.25
|
1
|
6.30
|
22
|
97
|
5.0
|
8
|
|
M
|
M9×1.0
|
9
|
7.1
|
5.6
|
|||||
|
M
|
M10×1.0
|
10
|
1.5
|
8.0
|
24
|
108
|
6.3
|
9
|
|
|
M
|
M10×1.25
|
1.25
|
|||||||
|
M
|
－
|
11
|
－
|
25
|
115
|
||||
|
M
|
M12×1.25
|
12
|
1.75
|
1.25
|
9.0
|
29
|
119
|
7.1
|
10
|
|
M
|
M12×1.5
|
1.5
|
|||||||
|
M
|
M14×1.25
|
14
|
2
|
1.25
|
11.2
|
30
|
127
|
9
|
12
|
|
M
|
M14×1.5
|
||||||||
|
M
|
M15×1.5
|
15
|
－
|
||||||
|
M
|
M16×1.5
|
16
|
2
|
1.5
|
12.5
|
32
|
137
|
10
|
13
|
|
M
|
M17×1.5
|
17
|
－
|
||||||
|
M
|
M18×1.5
|
18
|
2.5
|
2
|
14.0
|
37
|
149
|
11.2
|
14
|
|
M
|
M18×2.0
|
||||||||
|
M
|
M20×1.5
|
20
|
1.5
|
||||||
|
M
|
M20×2.0
|
2
|
|||||||
|
M
|
M22×1.5
|
22
|
1.5
|
16.0
|
38
|
158
|
12.5
|
16
|
|
|
M
|
M22×2.0
|
2
|
|||||||
|
M
|
M24×1.5
|
24
|
3
|
1.5
|
18.0
|
45
|
172
|
14.0
|
18
|
|
M
|
M24×2.0
|
2
|
|||||||
①公差h9应用于精密柄:非精密柄的公差为hl1。
❷当方头的形状误差和方头对柄部的位置误差考虑在内时为h12.3002-0805 T80)邵跡比聯啦则融習朴潤税幕qR味隔强a。
|
代号
|
公称直径d
|
螺距≈
|
d1
|
l
|
L
|
方头
|
|||
|
“统一制粗牙”(UNC) |
“统一制细牙”(UNF) |
UNC
|
UNF
|
h9
|
max
|
h16
|
a
|
l2
|
|
|
H11②
|
±0.8
|
||||||||
|
N0.5-40-UNC
|
N0.5-40-UNF
|
3.175
|
0.635
|
0.577
|
2.24
|
11
|
66
|
1.80
|
4
|
|
N0.6-32-UNC
|
N0.6-40-UNF
|
3.505
|
0.794
|
0.635
|
2.50
|
13
|
68
|
2.00
|
|
|
N0.8-32-UNC
|
N0.8-36-UNF
|
4.166
|
0.706
|
3.15
|
73
|
2.50
|
5
|
||
|
N0.10-24-UNC
|
N0.10-32-UNF
|
4.826
|
1.058
|
0.794
|
3.55
|
16
|
79
|
2.8
|
|
|
N0.12-24-UNC
|
N0.12-28-UNF
|
5.486
|
0.907
|
4.00
|
17
|
84
|
3.15
|
6
|
|
|
1/4-20-UNC
|
1/4-28-UNF
|
6.350
|
1.270
|
4.50
|
19
|
89
|
3.55
|
||
|
5/16-18-UNC
|
5/16-24-UNF
|
7.938
|
1.411
|
1.058
|
6.30
|
22
|
97
|
5.00
|
8
|
|
3/8-16-UNC
|
3/8-24-UNF
|
9.525
|
1.588
|
7.10
|
24
|
108
|
5.60
|
||
|
7/16-14-UNC
|
7/16-20-UNF
|
11.112
|
1.814
|
1.270
|
8.00
|
25
|
115
|
6.30
|
9
|
|
1/2-13-UNC
|
1/2-20-UNF
|
12.700
|
1.954
|
9.00
|
29
|
119
|
7.10
|
10
|
|
|
9/16-12-UNC
|
9/16-18-UNF
|
14.288
|
2.117
|
1.411
|
11.20
|
30
|
127
|
9.00
|
12
|
|
5/8-11-UNC
|
5/8-18-UNF
|
15.875
|
2.309
|
12.50
|
32
|
137
|
10.00
|
13
|
|
|
3/4-10-UNC
|
3/4-16-UNF
|
19.050
|
2.540
|
1.588
|
14.00
|
37
|
149
|
11.20
|
14
|
|
7/8-9-UNC
|
7/8-14-UNF
|
22.225
|
2.822
|
1.814
|
16.00
|
38
|
158
|
12.50
|
16
|
|
1-8-UNC
|
1-12-UNF
|
25.400
|
3.175
|
2.117
|
18.00
|
45
|
172
|
14.00
|
18
|
①公差h9应用于精密柄:非精密柄的公差为hl1。
❷当方头的形状误差和方头对柄部的位置误差考虑在内时为h12.3002-0805 T80)邵跡比聯啦则融習朴潤税幕qR味隔强a。
