美制细牙 UNF Machine Screw 2A (60°) (mm)
规格
牙数
外径(2A)
中径(2A)
材料径(2A)
基准
最大
最小
2
64
2.184
2.169
2.073
1.928
1.913
1.862
1.900
1.875
3
56
2.515
2.497
2.393
2.220
2.202
2.146
2.189
2.161
4
48
2.845
2.827
2.713
2.502
2.484
2.423
2.471
2.440
5
44
3.175
3.157
3.035
2.799
2.781
2.718
2.768
2.736
6
40
3.505
3.485
3.355
3.094
3.073
3.007
3.061
3.028
8
36
4.166
4.145
4.006
3.708
3.688
3.617
3.674
3.639
10
32
4.826
4.803
4.651
4.310
4.288
4.211
4.273
4.235
12
28
5.486
5.461
5.296
4.897
4.872
4.790
4.858
4.818
1/4
6.350
6.325
6.160
5.761
5.735
5.652
5.718
5.676
5/16
24
7.938
7.910
7.727
7.249
7.221
7.127
7.202
7.155
3/8
9.525
9.497
9.314
8.837
8.809
8.712
8.786
8.737
7/16
20
11.100
11.067
10.861
10.287
10.254
10.147
10.231
10.178
1/2
12.700
12.667
12.461
11.875
11.841
11.732
11.816
11.761
9/16
18
14.288
14.252
14.031
13.371
13.335
13.221
13.310
13.252
5/8
15.875
15.839
15.618
14.958
14.923
14.803
14.893
14.833
3/4
16
19.050
19.012
18.773
18.019
17.981
17.854
17.950
17.887
7/8
14
22.225
22.184
21.923
21.046
21.006
20.869
20.975
20.906
1
25.400
25.354
25.065
24.026
23.980
23.830
23.949
23.874