Таблица мелкой резьбы UNF

 
Американская резьба с мелким шагом – UNF
Резьба Диаметры резьбы в мм n P мм
D Dp Di
№0 1,524 1,320 1,181 80 0,320
№1 1,854 1,625 1,473 72 0,352
№2 2,184 1,930 1,755 64 0,400
№3 2,515 2,220 2,024 56 0,453
№4 2,845 2,502 2,271 48 0,530
№5 3,175 2,800 2,550 44 0,580
№6 3,505 3,093 2,820 40 0,635
№8 4,170 3,710 3,401 36 0,705
№10 4,830 4,310 3,881 32 0,793
№12 5,490 4,900 4,404 28 0,910
1/4 6,350 5,760 5,370 28 0,910
5/16 7,940 7,250 6,791 24 1,060
3/8 9,525 8,840 8,380 24 1,060
7/16 11,112 10,290 9,740 20 1,270
1/2 12,700 11,874 11,325 20 1,270
9/16 14,300 13,370 12,761 18 1,411
5/8 15,880 14,960 14,350 18 1,411
3/4 19,050 18,020 17,330 16 1,590
7/8 22,225 21,050 20,261 14 1,814
1 25,400 24,025 23,110 12 2,117
1/8 28,575 27,200 26,283 12 2,117
1/4 31,750 30,375 29,460 12 2,117
3/8 34,925 33,550 32,633 12 2,117
1/2 38,100 36,725 35,810 12 2,117
Unified National Fin