BSW
Rosca Whitworth Grossa

D (pol)
fios / pol

Diâmetro do núcleo (mm)

Diâmetro da broca (mm)

máximo

minimo

1/8-40
5/32-32
3/16-24
7/32-24
1/4-20
5/16-18
3/8-16
7/16-14
1/2-12
9/16-12
5/8-11
3/4-10
7/8-9
1"-8
1.1/8-7
1.1/4-7
1.3/8-6
1.1/2-6
1.5/8-5
1.3/4-5
1.7/8-4.1/2
2"-4.1/2
2.1/4-4
2.1/2-4
2.3/4-3.1/2
3-3.1/2

2.590
3.211
3.744
4.538
5.224
6.661
8.052
9.379
10.610
12.176
13.598
16.538
19.411
22.185
24.876
28.054
30.555
33.730
35.921
39.096
41.648
44.823
50.420
56.770
62.108
68.459

2.468
3.058
3.540
4.334
4.980
6.389
7.747
9.030
10.203
11.769
13.154
16.050
18.868
21.575
24.182
27.357
29.741
32.916
34.945
38.120
40.563
43.738
49.200
55.550
60.714
67.065

2.5
3.1
3.6
4.4
5.1
6.5
7.9
9.2
10.5
12.0
13.4
16.4
19.25
22.0
24.7
27.75
30.2
33.5
35.5
38.5
41.5
44.5
50.0
56.6
62.0
68.0