- ANSI B 1.1 Rosca Americana Unificada
- Tolerância para Roscas Externa
D | Série | Tol. | Área (mm²) | Diâmetro | D | Série | Tol. | Área (mm²) | Diâmetro | ||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Maior | Primitivo | Maior | Primitivo | ||||||||||||
Min: | Max: | Min: | Max: | Min: | Max: | Min: | Max: | ||||||||
1/4″ | 20-UNC | 2A | 0,00318 | 6,116 | 6,322 | 5,403 | 5,497 | 1.1/8″ | 12-UNF | 2A | 0,856 | 26,240 | 28,529 | 27,003 | 27,155 |
1/4″ | 20-UNC | 3A | 0,0318 | 6,144 | 6,350 | 5,453 | 5,525 | 1.1/8″ | 12-UNF | 3A | 0,856 | 28,285 | 28,575 | 27,087 | 27,407 |
1/4″ | 28-UNF | 2A | 0,0364 | 6,160 | 6,325 | 5,652 | 5,735 | 1.1/4″ | 7-UNC | 2A | 0,969 | 31,278 | 31,694 | 29,149 | 29,337 |
1/4″ | 28-UNF | 3A | 0,0364 | 6,185 | 6,350 | 5,697 | 5,761 | 1.1/4″ | 7-UNC | 3A | 0,969 | 31,333 | 31,750 | 29,255 | 29,393 |
5/16″ | 18-UNC | 2A | 0,0524 | 7,686 | 7,907 | 6,888 | 6,990 | 1.1/4″ | 8-UN | 2A | 1,000 | 31,316 | 31,697 | 29,456 | 29,634 |
5/16″ | 18-UNC | 3A | 0,0524 | 7,717 | 7,938 | 6,944 | 7,021 | 1.1/4″ | 8-UN | 3A | 1,000 | 31,369 | 31,750 | 29,553 | 29,688 |
5/16″ | 24-UNF | 2A | 0,0580 | 7,727 | 7,910 | 7,127 | 7,221 | 1.1/4″ | 12-UNF | 2A | 1,073 | 31,415 | 31,704 | 30,1736 | 30,330 |
5/16″ | 24-UNF | 3A | 0,0580 | 7,755 | 7,938 | 7,181 | 7,249 | 1.1/4″ | 12-UNF | 3A | 1,073 | 31,460 | 31,750 | 30,259 | 30,376 |
3/8″ | 16-UNC | 2A | 0,0775 | 9,253 | 9,492 | 8,349 | 8,407 | 1.3/8″ | 6-UNC | 2A | 1,155 | 34,402 | 34,864 | 31,910 | 32,113 |
3/8″ | 16-UNC | 3A | 0,0775 | 9,286 | 3,525 | 8,410 | 8,494 | 1.3/8″ | 6-UNC | 3A | 1,155 | 34,463 | 34,925 | 32,022 | 32,174 |
3/8″ | 24-UNF | 2A | 0,0878 | 9,314 | 9,497 | 8,712 | 8,809 | 1.3/8″ | 8-UN | 2A | 1,233 | 34,488 | 34,869 | 32,624 | 32,807 |
3/8″ | 24-UNF | 3A | 0,0878 | 9,342 | 9,525 | 8,763 | 8,837 | 1.3/8″ | 8-UN | 3A | 1,233 | 34,544 | 34,925 | 32,725 | 32,863 |
7/16″ | 14-UNC | 2A | 0,1063 | 10,815 | 11,077 | 9,779 | 9,989 | 1.3/8″ | 12-UNF | 2A | 1,315 | 34,587 | 34,877 | 33,343 | 33,503 |
7/16″ | 14-UNC | 3A | 0,1063 | 10,851 | 11,113 | 9,845 | 9,934 | 1.3/8″ | 12-UNF | 3A | 1,315 | 34,635 | 34,925 | 33,431 | 33,551 |
7/16″ | 20-UNF | 2A | 0,1187 | 10,874 | 11,079 | 10,147 | 10,254 | 1.1/2″ | 6-UNC | 2A | 1,405 | 37,577 | 38,039 | 35,082 | 35,288 |
7/16″ | 20-UNF | 3A | 0,1187 | 10,907 | 11,113 | 10,208 | 10,287 | 1.1/2″ | 6-UNC | 3A | 1,405 | 37,638 | 38,100 | 35,194 | 35,349 |
1/2″ | 13-UNC | 2A | 0,1419 | 12,385 | 12,662 | 11,265 | 11,392 | 1.1/2″ | 8-UN | 2A | 1,492 | 37,663 | 38,044 | 35,796 | 35,982 |
1/2″ | 13-UNC | 3A | 0,1419 | 12,423 | 12,700 | 11,336 | 11,430 | 1.1/2″ | 8-UN | 3A | 1,492 | 37,719 | 38,100 | 35,898 | 36,038 |
1/2″ | 20-UNF | 2A | 0,1599 | 12,461 | 12,667 | 11,732 | 11,841 | 1.1/2″ | 12-UNF | 2A | 1,581 | 37,762 | 38,052 | 36,515 | 36,678 |
1/2″ | 20-UNF | 3A | 0,1599 | 12,494 | 12,700 | 11,793 | 11,875 | 1.1/2″ | 12-UNF | 3A | 1,581 | 37,810 | 38,100 | 36,604 | 36,726 |
9/16″ | 12-UNC | 2A | 0,182 | 13,957 | 13,993 | 12,741 | 12,873 | 1.5/8″ | 6-UNC | 2A | 1,680 | 40,749 | 41,212 | 38,252 | 38,461 |
9/16″ | 12-UNC | 3A | 0,182 | 13,998 | 14,228 | 12,814 | 12,906 | 1.5/8″ | 6-UNC | 3A | 1,680 | 40,813 | 41,275 | 38,367 | 38,525 |
9/16″ | 18-UNF | 2A | 0,203 | 14,031 | 14,252 | 13,221 | 13,335 | 1.5/8″ | 8-UN | 2A | 1,775 | 40,838 | 41,219 | 38,969 | 39,157 |
9/16″ | 18-UNF | 3A | 0,203 | 14,067 | 14,288 | 13,284 | 13,371 | 1.5/8″ | 8-UN | 3A | 1,775 | 40,894 | 41,275 | 39,070 | 39,213 |
5/8″ | 11-UNC | 2A | 0,226 | 15,527 | 15,834 | 14,196 | 14,336 | 1.5/8″ | 12-UNF | 2A | 1,872 | 40,940 | 41,229 | 39,705 | 39,855 |
5/8″ | 11-UNC | 3A | 0,226 | 15,568 | 15,875 | 14,272 | 14,923 | 1.5/8″ | 12-UNF | 3A | 1,872 | 40,895 | 41,275 | 39,789 | 39,901 |
5/8″ | 18-UNF | 2A | 0,256 | 15,618 | 15,839 | 14,803 | 14,923 | 1.3/4″ | 5-UNC | 2A | 1,900 | 43,861 | 44,381 | 40,856 | 41,082 |
5/8″ | 18-UNF | 3A | 0,256 | 15,654 | 15,875 | 14,869 | 14,958 | 1.3/4″ | 5-UNC | 3A | 1,900 | 43,929 | 44,450 | 40,980 | 41,151 |
3/4″ | 10-UNC | 2A | 0,334 | 18,677 | 19,004 | 17,203 | 17,353 | 1.3/4″ | 8-UN | 2A | 2,080 | 44,011 | 44,392 | 42,319 | 42,392 |
3/4″ | 10-UNC | 3A | 0,334 | 18,722 | 19,050 | 17,287 | 17,399 | 1.3/4″ | 8-UN | 3A | 2,080 | 44,069 | 44,450 | 42,245 | 42,388 |
3/4″ | 16-UNF | 2A | 0,373 | 18,773 | 19,012 | 17,854 | 17,981 | 1.3/4″ | 12-UN | 2A | 2,187 | 44,115 | 44,404 | 42,878 | 43,030 |
3/4″ | 16-UNF | 3A | 0,373 | 18,811 | 19,050 | 19,922 | 18,019 | 1.3/4″ | 12-UN | 3A | 2,187 | 44,160 | 44,450 | 42,962 | 43,076 |
7/8″ | 9-UNC | 2A | 0,462 | 21,824 | 22,177 | 20,183 | 20,343 | 1.7/8″ | 6-UNC | 2A | 2,304 | 47,099 | 47,562 | 44,597 | 44,811 |
7/8″ | 9-UNC | 3A | 0,462 | 21,872 | 22,225 | 20,272 | 20,391 | 1.7/8″ | 6-UNC | 3A | 2,304 | 47,163 | 47,625 | 44,715 | 44,874 |
7/8″ | 14-UNF | 2A | 0,509 | 21,923 | 22,184 | 20,869 | 21,006 | 1.7/8″ | 8-UN | 2A | 2,414 | 47,186 | 47,567 | 45,309 | 45,504 |
7/8″ | 14-UNF | 3A | 0,509 | 21,963 | 22,225 | 20,942 | 21,046 | 1.7/8″ | 8-UN | 3A | 2,414 | 47,186 | 47,567 | 45,309 | 45,504 |
1″ | 8-UNC | 2A | 0,606 | 24,968 | 25,349 | 23,114 | 23,287 | 1.7/8″ | 12-UNF | 2A | 2,527 | 47,290 | 47,579 | 46,053 | 46,205 |
1″ | 8-UNC | 3A | 0,606 | 25,019 | 25,400 | 23,208 | 23,338 | 1.7/8″ | 12-UNF | 3A | 2,527 | 47,335 | 47,625 | 46,137 | 46,251 |
1″ | 12-UNF | 2A | 0,663 | 25,065 | 25,354 | 23,830 | 23,980 | 2″ | 4,5-UNC | 2A | 2,500 | 50,168 | 50,726 | 46,820 | 47,061 |
1″ | 12-UNF | 3A | 0,663 | 25,110 | 25,400 | 23,914 | 24,026 | 2″ | 4,5-UNC | 3A | 2,500 | 50,241 | 50,800 | 46,954 | 47,135 |
1.1/8″ | 7-UNC | 2A | 0,763 | 28,103 | 28,519 | 25,979 | 26,162 | 2″ | 8-UN | 2A | 2,770 | 50,361 | 50,742 | 48,481 | 48,679 |
1.1/8″ | 7-UNC | 3A | 0,763 | 28,158 | 28,575 | 26,081 | 26,218 | 2″ | 8-UN | 3A | 2,770 | 50,419 | 50,800 | 48,590 | 18,738 |
1.1/8″ | 8-UN | 2A | 0,790 | 28,141 | 28,522 | 26,284 | 26,459 | 2″ | 12-UNF | 2A | 2,890 | 50,465 | 50,754 | 49,225 | 49,380 |
1.1/8″ | 8-UN | 3A | 0,790 | 28,194 | 28,575 | 26,380 | 26,513 | 2″ | 12-UNF | 3A | 2,890 | 50,510 | 49,312 | 49,312 | 49,426 |