<> SUPERPAR Rosca Polegada Especializados em Galvanizados a Fogo- Parafusos Porcas Arruelas

Rosca Série Polegada - Sistema Unificado Americano



Ref ANSI - B1.1 - 1982 (mm)

Diâmetro
Nominal
nº fios-série
Rosca Externa
Rosca Interna
Classe
Diâmetro Maior
Diâmetro Primitivo
Diâmetro
Menor
Classe
Diâmetro Menor
Diâmetro Primitivo
Diâmetro
Maior
máx.
min.
máx.
min.
máx.
min.
máx.
min.
máx.
min.
Nº 5
40 UNC
2A
3,154
3,026
2,743
2,678
2,398
2B
2,487
2,697
2,764
2,847
3,175
3A
3,175
3,046
2,763
2,716
2,418
3B
2,487
2,697
2,764
2,827
3,175
Nº 5
44 UNF
2A
3,157
3,036
2,781
2,781
2,469
2B
2,551
2,740
2,800
2,880
3,175
3A
3,175
3,054
2,799
2,751
2,487
3B
2,551
2,740
2,800
2,860
3,175
Nº 6
32 UNC
2A
3,484
3,333
2,969
2,899
2,540
2B
2,642
2,895
2,990
3,083
3,506
3A
3,505
3,353
2,989
2,937
2,560
3B
2,642
2,895
2,990
3,058
3,506
Nº 6
40 UNF
2A
3,484
3,356
3,073
3,008
2,728
2B
2,820
3,022
3,094
3,180
3,506
3A
3,505
3,376
3,093
3,043
2,748
3B
2,820
3,012
3,094
3,157
3,506
Nº 8
32 UNF
2A
4,142
3,991
3,627
3,554
3,198
2B
3,302
3,530
3,650
3,746
4,166
3A
4,165
4,014
3,649
3,595
3,221
3B
3,302
3,528
3,650
3,721
4,166
Nº 8
36 UNF
2A
4,145
4,006
3,688
3,617
3,305
2B
3,404
3,606
3,709
3,799
4,166
3A
4,165
4,026
3,708
3,656
3,325
3B
3,404
3,596
3,709
3,776
4,166
Nº 10
24 UNC
2A
4,800
4,618
4,112
4,029
3,541
2B
3,683
3,962
4,138
4,246
4,826
3A
4,826
4,644
4,137
4,075
3,566
3B
3,683
3,949
4,138
4,218
4,826
Nº 10
32 UNC
2A
4,803
4,651
4,287
4,212
3,858
2B
3,963
4,165
4,311
4,409
4,826
3A
4,826
4,674
4,310
4,252
3,881
3B
3,963
4,168
4,311
4,384
4,826
Nº 12
24 UNC
2A
5,461
5,279
4,772
4,687
4,201
2B
4,344
4,597
4,799
4,909
5,487
3A
5,486
5,304
4,798
4,733
4,227
3B
4,344
4,589
4,799
4,881
5,487
Nº 12
28 UNF
2A
5,461
5,296
4,871
4,791
4,379
2B
4,496
4,724
4,898
5,003
5,487
3A
5,486
5,322
4,897
4,837
4,404
3B
4,496
4,716
4,898
4,975
5,487
1/4"
20 UNC
2A
6,322
6,117
5,496
5,403
4,811
2B
4,979
5,257
5,55
5,648
6,350
3A
6,350
6,145
5,524
5,454
4,839
3B
4,979
5,250
5,525
5,615
6,350
1/4"
28 UNF
2A
6,324
6,160
5,735
5,652
5,243
2B
5,360
5,588
5,761
5,869
6,350
3A
6,350
6,185
5,760
5,698
5,268
3B
5,360
5,562
5,761
5,842
6,350
5/16"
18 UNC
2A
7,907
7,687
6,990
6,889
6,228
2B
6,401
6,731
7,021
7,155
7,938
3A
7,927
7,717
7,020
6,945
6,259
3B
6,401
6,680
7,021
7,119
7,938
5/16"
24 UNF
2A
7,909
7,727
7,221
7,128
6,650
2B
6,782
7,035
7,251
7,371
7,938
3A
7,937
7,755
7,249
7,181
6,678
3B
6,782
6,995
7,250
7,340
7,938
3/8"
16 UNF
2A
9,491
9,254
8,460
8,349
7,600
2B
7,798
8,153
8,494
8,638
9,525
3A
9,525
9,287
8,493
8,410
7,633
3B
7,798
8,082
8,494
8,602
9,525
3/8"
24 UNF
2A
9,497
9,315
8,808
8,713
8,223
2B
8,382
8,636
8,837
8,961
9,525
3A
9,525
9,343
8,836
8,763
8,265
3B
8,382
8,564
8,837
8,930
9,525
7/16"
14 UNC
2A
11,076
10,816
9,898
9,779
8,918
2B
9,144
9,550
9,934
10,088
11,113
3A
11,112
10,851
9,933
9,846
8,954
3B
9,144
9,441
9,934
10,050
11,113
7/16"
20 UNF
2A
11,079
10,874
10,254
10,147
9,568
2B
9,729
10,033
10,287
10,424
11,113
3A
11,112
10,907
10,287
10,208
9,601
3B
9,729
9,946
10,287
10,391
11,113
1/2"
13 UNC
2A
12,661
12,386
11,392
11,265
8,430
2B
10,592
11,023
11,430
11,595
12,700
3A
12,700
12,424
11,430
11,336
8,468
3B
10,592
10,881
11,430
11,551
12,700
1/2"
20 UNF
2A
12,666
12,462
11,841
11,732
11,156
2B
11,329
11,607
11,875
1,016
12,700
3A
12,700
12,495
11,874
11,793
11,189
3B
11,329
11,523
11,875
11,981
12,700
9/16"
12 UNC
2A
14,246
13,958
12,873
12,741
11,727
2B
11,989
12,446
12,914
13,086
14,288
3A
14,287
13,998
12,913
12,814
11,768
3B
11,989
12,301
12,914
13,042
14,288
9/16"
18 UNF
2A
14,251
14,031
13,335
13,221
12,573
2B
12,751
13,081
13,371
13,520
14,288
3A
14,287
14,067
13,370
13,285
12,609
3B
12,751
12,969
13,371
13,482
14,288
5/8"
11 UNC
2A
15,834
15,528
14,335
14,197
13,086
2B
13,386
13 ,868
14,377
14,559
15,875
3A
15,875
15,568
14,376
14,273
13,127
3B
13,386
13,693
14,377
14,513
15,875
5/8"
18 UNF
2A
15,839
15,619
14,922
14,804
14,161
2B
14,351
14,681
14,959
15,110
15,875
3A
15,875
15,655
14,958
14,870
14,196
3B
14,351
14,554
14,959
15,072
15,875
3/4"
10 UNC
2A
19,004
18,677
17,353
17,204
15,979
2B
16,307
16,840
17,399
17,594
19,050
3A
19,050
18,273
17,399
17,288
16,025
3B
16,307
16,624
17,399
17,543
19,050
3/4"
16 UNF
2A
19,011
18,774
17,980
17,854
17,120
2B
17,323
17,678
18,019
18,183
19,050
3A
19,050
18,812
18,018
17,923
17,158
3B
17,323
17,546
18,019
18,143
19,050
7/8"
9 UNC
2A
22,176
21,824
20,342
20,183
18,816
2B
19,177
19,761
20,392
20,599
22,225
3A
22,225
21,872
20,391
20,272
18,865
3B
19,177
19,509
20,392
20,546
22,225
7/8"
14 UNF
2A
22,184
21,923
21,005
20,869
20,025
2B
20,270
20,675
21,047
21,224
22,225
3A
22,225
21,964
21,046
20,943
20,066
3B
20,270
20,492
21,047
21,181
22,225
1 - 8 UNC
2A
25,349
24,969
23,286
23,114
21,570
2B
21,971
22,606
23,338
23,561
25,400
3A
25,400
25,019
23,337
23,208
21,620
3B
21,971
22,344
23,338
23,505
25,440
1 - 12 UNF
2A
25,254
25,065
23,980
23,831
22,835
2B
23,114
23,571
24,026
24,218
25,400
3A
25,400
25,111
24,025
23,915
22,880
3B
23,114
23,362
24,026
24,170
25,400