|
代号
|
基本直径
|
近似螺距
|
D
F10
|
E
js12
|
c
|
b
|
a
|
|
1/16
|
7.723
|
0.907
|
25
|
7
|
0.8
|
5
|
0.5
|
|
1/8
|
9.728
|
30
|
8
|
1.0
|
1
|
||
|
1/4
|
13.157
|
1.337
|
38
|
10
|
1.2
|
6
|
1
|
|
3/8
|
16.662
|
45(38)
|
|||||
|
1/2
|
20.955
|
1.814
|
45
|
14
|
|||
|
5/8
|
22.911
|
55(45)
|
16(14)
|
1.5
|
8
|
1
|
|
|
3/4
|
26.441
|
55
|
16
|
||||
|
7/8
|
30.201
|
65
|
1.8
|
||||
|
1
|
33.249
|
2.309
|
18
|
||||
|
11/4
|
41.910
|
75
|
20
|
2
|
|||
|
11/2
|
47.803
|
90
|
22
|
2.0
|
|||
|
13/4
|
53.746
|
2.5
|
10
|
||||
|
2
|
59.614
|
105
|
|||||
|
21/2
|
65.710
|
120
|
注:()内尺寸尽量不采用，如采用应做标识。
