REFERÊNCIA
ASME B18.2.1 - 1996
(Tabela 1)
|
Diâmetro
Nominal |
E
|
F
|
G
|
H
|
R
|
LT
L<ou =6"L>6" |
|||||
|
|
máx.
|
máx.
|
min.
|
máx.
|
min
|
máx.
|
min.
|
máx.
|
min.
|
básico
|
básico
|
|
1/4"
|
6,604
|
9,525
|
9,194
|
13,462
|
12,649
|
4,775
|
3,962
|
0,762
|
0,254
|
19,050
|
25,400
|
|
5/16"
|
8,229
|
12,700
|
12,294
|
17,957
|
16,891
|
5,588
|
4,724
|
0,762
|
0,254
|
22,225
|
28,575
|
|
3/8"
|
9,855
|
14,274
|
13,817
|
20,193
|
18,973
|
6,807
|
5,892
|
0,762
|
0,254
|
25,400
|
31,750
|
|
7/16"
|
11,480
|
15,875
|
15,316
|
22,453
|
21,031
|
8,026
|
7,061
|
0,762
|
0,254
|
28,575
|
34,925
|
|
1/2"
|
13,081
|
19,050
|
18,415
|
26,949
|
25,273
|
8,839
|
7,823
|
0,762
|
0,254
|
31,750
|
38,100
|
|
5/8'
|
16,306
|
23,825
|
23,012
|
33,680
|
31,597
|
11,277
|
10,160
|
1,524
|
0,508
|
38,100
|
44,450
|
|
3/4"
|
19,507
|
28,575
|
27,635
|
40,411
|
37,947
|
13,306
|
12,090
|
1,524
|
0,508
|
44,450
|
50,800
|
|
7/8"
|
22,733
|
33,324
|
32,232
|
47,142
|
44,246
|
15,748
|
14,427
|
1,524
|
0,508
|
50,800
|
57,150
|
|
1"
|
25,958
|
38,100
|
36,830
|
53,873
|
50,571
|
17,373
|
15,951
|
2,286
|
0,762
|
57,150
|
63,500
|
|
1.1/8"
|
29,184
|
42,875
|
41,427
|
60,604
|
56,870
|
19,812
|
18,288
|
2,286
|
0,762
|
63,500
|
69,850
|
|
1.1/4"
|
32,435
|
47,625
|
46,024
|
67,360
|
63,220
|
22,250
|
20,624
|
2,286
|
0,762
|
69,850
|
76,200
|
|
1.3/8"
|
35,661
|
52,374
|
50,647
|
74,091
|
69,545
|
23,876
|
22,148
|
2,286
|
0,762
|
76,200
|
82,550
|
|
1.1/2"
|
38,887
|
57,150
|
55,245
|
80,822
|
75,844
|
26,314
|
24,485
|
2,286
|
0,762
|
82,550
|
88,900
|
TOLERÂNCIA
PARA COMPRIMENTOS "L"
|
Diâmetro
Nominal
|
||||||
|
Comprimento
Nominal
|
1/4"
a 3/8"
|
7/16"
e 1/2"
|
9/16"a
3/4"
|
7/8"
e 1"
|
1.1/8"
a 1.1/2"
|
Acima
de 1.1/2"
|
| Até1" |
+0,508
-0,762 |
+0,508
-0,762 |
+0,508
-0,762 |
---------
|
---------
|
---------
|
| Acima
de 1"até 2.1/2" |
+0,508
-1,016 |
+1,016
-1,524 |
+1,524
-2,032 |
+2,032
-2,540 |
+3,048
-3,048 |
+4,572
-4,572 |
| Acima
de 2.1/2"até 4" |
+1,016
-1,524 |
+1,524
-2,032 |
+2,032
-2,540 |
+2,540
-3,556 |
+4,064
-4,064 |
+5,080
-5,080 |
| Acima
de 4" até 6" |
+1,524
-2,540 |
+2,032
-2,540 |
+2,540
-2,540 |
+3,048
-4,064 |
+4,572
-4,572 |
+5,588
-5,588 |
| Acima de 6" |
+2,540
-4,572 |
+3,048
-4,572 |
+3,556
-4,572 |
+4,064
-5,080 |
+5,588
-5,588 |
+6,096
-6,096 |
OBS: ROSCAS: Especificar - UNC/UNF/8UN/BSW/BSF.
