Pasos en Pulgadas (UNC/UNF) y Milimétricos (MA/MB)
|
ROSCAS EN PULGADAS |
ROSCAS METRICAS |
PULG.
ø |
MM.
|
Mecha para roscar |
Hilos por pulgada |
|
MM.
ø |
Mecha para roscar |
mm. entre hilos |
|
|
|
USS
UNC-NC |
SAE
UNF-NF |
|
|
|
grueso
MA |
fino
MB |
1/8
5/32
3/16 |
3.17
3.97
4.76 |
2.50
3.25
3.75 |
40
32
24 |
44
36
32 |
|
4
5 |
3.50
4.25 |
0.70
0.80 |
0.50
0.50 |
1/4
5/16
3/8
7/16 |
6.35
7.94
9.52
11.11 |
5.25
6.50
8.00
9.50 |
20
18
16
14 |
28
24
24
20 |
|
6
7
8
9 |
5.00
6.00
6.75
7.75 |
1.00
1.00
1.25
1.25 |
0.50
0.75
1.00
1.00 |
1/2
9/16
5/8 |
12.70
14.29
15.87 |
10.50
12.00
13.50 |
13(1)
12
11 |
20
18
18 |
|
10
12
14 |
8.50
10.50
12.25 |
1.50
1.75
2.00 |
1.25
1.50(2)
1.50 |
3/4
7/8
1 |
19.05
22.22
25.40 |
16.50
19.50
22.50 |
10
9
8 |
16
14
14 |
|
16
18
20
22 |
14.25
16.00
18.00
20.00 |
2.00
2.50
2.50
2.50 |
1.50
1.50
1.50
1.50 |
|
(1) Withworth 12 hilos por pulgada |
|
(2) paso Fiat 1.25
|