公制美制英制螺纹对照表文档格式.docx
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13.157
11.55#cG7h(!
3/8”-19
16.662
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33.249
30.29e):
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英制圆锥管螺纹(BSPT)常用规格)>
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10.24
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13.60
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17.04
4.32rSgOQ
21.22
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26.57
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美制外螺纹(2A)常用规格极限尺寸表(粗牙)
打印|推荐|评分
2007-4-2016:
33
公称尺寸和每英寸牙数
螺纹系列代号
大径极限
中径极限
小径max
螺胚直径
最小
最大
8-32
UNC
0.1571
0.1631
0.1399
0.1428
0.1248
3.58
3.61
(0.164-32)
3.9903
4.1427
3.5535
3.6271
3.1699
10-24
0.1818
0.1890
0.1586
0.1619
0.1379
4.07
4.10
(0.190-24)
4.6177
4.8006
4.0284
4.1123
3.5027
12-24
0.2078
0.2150
0.1845
0.1879
0.1639
4.72
4.75
(0.216-24)
5.2781
5.4610
4.6863
4.7727
4.1631
1/4-20
0.2408
0.2489
0.2127
0.2164
0.1876
5.45
5.48
(0.250-20)
6.1163
6.3221
5.4026
5.4966
4.7650
5/16-18
0.3026
0.3113
0.2712
0.2752
0.2431
6.94
6.98
(0.3175-18)
7.6860
7.9070
6.8885
6.9901
6.1747
评论(7)
3/8-16
0.3643
0.3737
0.3287
0.3331
0.2970
8.40
8.44
(0.375-16)
9.2532
9.4920
8.3490
8.4607
7.5438
7/16-14
0.4258
0.4361
0.3850
0.3897
0.3485
9.83
9.87
(0.4375-14)
10.8153
11.0769
9.7790
9.8984
8.8519
1/2-13
0.4876
0.4985
0.4435
0.4485
0.4041
11.34
11.38
(0.50-13)
12.3850
12.6619
11.2649
11.3919
10.2641
9/16-12
0.5495
0.5609
0.5016
0.5068
0.4587
12.80
12.84
(0.5625-12)
13.9573
14.2469
12.7406
12.8727
11.6510
5/8-11
0.6113
0.6234
0.5589
0.5644
0.5119
14.27
14.32
(0.625-11)
15.5270
15.8344
14.1961
14.3358
13.0023
3/4-10
0.7353
0.7482
0.6773
0.6832
0.6255
17.28
17.33
(0.750-10)
18.6766
19.0043
17.2034
17.3533
15.8877
7/8-9
0.8592
0.8731
0.7946
0.8009
0.7368
20.27
20.32
(0.875-9)
21.8237
22.1767
20.1828
20.3429
18.7147
1"
-8
0.9830
0.9980
0.9100
0.9168
0.8446
23.22
23.27
(1.000-8)
24.9682
25.3492
23.1140
23.2867
21.4528
1.螺胚直径指滚丝前的尺寸,数值为依经验公式计算而得,在实践中需验证。
2.标记示例:
10-24UNC-2A(或0.190-24UNC-2A)、3/8-16UNC-2A(或0.375-16UNC-2A)
(注:
表中上行斜体数值单位为英寸,下行为毫米)
lanjibingyu
34
美制外螺纹(2A)常用规格极限尺寸表(细牙)
公称尺寸和每英寸牙数
螺纹系列代号
大径极限
中径极限
小径max
螺胚直径
最小
最大
最大
8-36
UNF
0.1577
0.1632
0.1424
0.1452
0.1291
3.65
3.67
(0.164-36)
4.0056
4.1453
3.6170
3.6881
3.2791
10-32
0.1831
0.1891
0.1658
0.1688
0.1508
4.24
4.27
(0.190-32)
4.6507
4.8031
4.2113
4.2875
3.8303
12-28
0.2085
0.2150
0.1886
0.1918
0.1712
4.82
4.85
(0.216-28)
5.2959
5.4610
4.7904
4.8717
4.3485
1/4-28
0.2425
0.2490
0.2225
0.2258
0.2052
5.69
5.71
(0.250-28)
6.1595
6.3246
5.6515
5.7353
5.2121
5/16-24
0.3042
0.3114
0.2806
0.2843
0.2603
7.17
7.20
(0.3175-24)
7.7267
7.9096
7.1272
7.2212
6.6116
3/8-24
0.3667
0.3739
0.3430
0.3468
0.3228
8.75
8.78
(0.375-24)
9.3142
9.4971
8.7122
8.8087
8.1991
7/16-20
0.4281
0.4362
0.3995
0.4037
0.3749
10.19
10.23
(0.4375-20)
10.8737
11.0795
10.1473
10.2540
9.5225
1/2-20
0.4906
0.4987
0.4619
0.4662
0.4374
11.78
11.82
(0.50-20)
12.4612
12.6670
11.7323
11.8415
11.1100
9/16-18
0.5524
0.5611
0.5205
0.5250
0.4929
13.27
13.31
(0.5625-18)
14.0310
14.2519
13.2207
13.3350
12.5197
5/8-18
0.6149
0.6236
0.5828
0.5875
0.5554
14.85
14.89
(0.625-18)
15.6185
15.8394
14.8031
14.9225
14.1072
3/4-16
0.7391
0.7485
0.7029
0.7079
0.6718
17.91
17.95
(0.750-16)
18.7731
19.0119
17.8537
17.9807
17.0637
7/8-14
0.8631
0.8734
0.8216
0.8270
0.7858
20.93
20.97
(0.875-14)
21.9227
22.1844
20.8686
21.0058
19.9593
-12
0.9868
0.9982
0.9382
0.9441
0.8960
23.90
23.95
(1.000-12)
25.0647
25.3543
23.8303
23.9801
22.7584
10-32UNF-2A(或0.190-32UNF-2A)、3/8-24UNF-2A(或0.375-24UNF-2A)
上传图片:
美制螺纹尺寸对照表
螺纹规格-美制、英制、公制
美制细牙UNF
2A外螺纹大径UNFUN
2B内螺纹小径(UN、UNF)
序号
规格型号
公差
1
7/16"
-20
11.079
10.874
0.206
9.728
10.033
0.305
2
1/2"
12.667
12.461
11.328
11.608
0.279
3
-18
14.252
14.031
0.221
12.751
13.081
0.330
4
3/4"
-16
19.012
18.773
0.239
17.323
17.678
0.356
5
7/8"
-14
22.184
21.923
0.262
20.269
20.676
0.406
6
11/16-12
26.944
26.655
0.290
24.689
25.146
0.457
7
15/16-12
33.294
33.005
31.039
31.496
8
15/8-12
41.229
40.940
38.989
39.446
9
17/8-12
47.579
47.290
45.339
45.796
10
21/2-12
63.452
63.162
61.214
61.671
公制细牙
6g外螺纹大径
6H内螺纹小径
M10*1
9.974
9.794
0.180
8.917
9.157
0.240
M12*1.5
11.968
11.732
0.236
10.376
10.676
0.300
M14*1.5
13.968
13.732
12.376
12.676
M16*1.5
15.968
15.732
14.376
14.676
M18*1.5
17.968
17.732
16.376
16.676
M20*1.5
19.968
19.732
18.376
18.676
M22*1.5
21.968
21.732
20.376
M24*1.5
23.968
23.732
22.376
22.676
M26*1.5
25.968
25.732
24.376
24.676
M27*1.5
26.968
26.732
25.376
25.676
11
M30*1.5
29.968
29.732
28.376
28.676
12
M27*2
26.962
26.682
0.280
24.835
25.210
0.375
13
M30*2
29.962
29.682
27.835
28.210
14
M33*2
32.962
32.682
30.835
31.210
15
M36*2
35.962
35.682
33.835
34.210
16