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Porca e Contra-Porca Sextavada: Normal / Leve / Regular


Porca e Contra-Porca Sextavada: Normal / Leve / Regular

REFERÊNCIA
ASME / ANSI B18.2.2 - 1987
(Tabela 3)

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Diâmetro
F
G
H
H1
Nominal
máx.
min.
máx.
min.
máx.
min.
máx.
min.
1/4"
11,125
10,871
12,827
12,395
5,740
5,384
4,140
3,810
5/16"
12,700
12,420
14,655
14,147
6,934
6,553
4,953
4,572
3/8"
14,274
13,995
16,510
15,951
8,559
8,128
5,765
5,334
7/16"
17,475
17,145
20,167
19,507
9,779
9,271
6,604
6,096
1/2"
19,050
18,694
21,996
21,336
11,379
10,845
8,204
7,670
9/16"
22,225
21,869
25,654
24,942
12,598
12,014
8,229
7,645
5/8"
23,825
23,418
27,508
26,695
14,198
13,589
9,829
9,220
3/4"
28,575
27,635
32,994
31,496
16,891
15,671
11,328
10,109
7/8"
33,324
32,232
38,506
36,753
19,710
18,389
12,954
11,633
1"
38,100
36,830
43,992
41,986
22,529
21,107
14,605
13,182
1.1/8"
42,875
41,427
49,504
47,218
25,374
23,850
16,230
14,706
1.1/4"
47,625
46,024
54,991
52,476
27,787
26,162
19,075
17,449
1.3/8"
52.374
50,647
60,502
57,734
30,632
28,905
20,701
18,973
1.1/2"
57,150
55,245
65,989
62,992
33,451
31,623
22,352
20,523

OBS: ROSCA: Especificar - UNC/UNF/BSW/BSF.