UNF
ANSI B 1.1, BS 1580:1962
UNIFIKOVANÝ JEMNÝ ZÁVIT

LÍCOVANIE ZÁVITU MATICE:
3B=PRESNÉ, 2B=STREDNÉ, 1B = HRUBÉ

D = veľký závitu matice
D2 = stredný závitu matice
D1 = malý závitu matice
P= stúpanie
Z = počet závitov / 1"
d = D
Závit
Dmin
D1 min
D1 max
d - Z
d (")
P
3B, 2B, 1B
3B
2B, 1B
0-80
0,060
0,318
1,524
1,181
1,306
1,306
1-72
0,073
0,353
1,854
1,473
1,613
1,613
2-64
0,086
0,397
2,184
1,755
1,913
1,913
3-56
0,099
0,454
2,515
2,024
2,197
2,197
4-48
0,112
0,529
2,845
2,271
2,459
2,459
5-44
0,125
0,577
3,175
2,550
2,741
2,741
6-40
0,138
0,635
3,505
2,817
3,012
3,023
8-36
0,164
0,706
4,166
3,401
3,597
3,607
10-32
0,190
0,794
4,826
3,967
4,168
4,168
12-28
0,216
0,907
5,486
4,503
4,717
4,724
1/4-28
0,250
0,907
6,350
5,367
5,563
5,588
5/16-24
0,3125
1,058
7,938
6,792
6,995
7,036
3/4-24
0,375
1,058
9,525
8,379
8,565
8,636
7/16-20
0,4375
1,270
11,112
9,738
9,97
10,033
1/2-20
0,500
1,270
12,700
11,326
11,524
11,608
9/16-18
0,5625
1,411
214,288
12,761
12,969
13,081
5/8-18
0,625
1,411
15,875
14,348
14,554
14,681
3/4-16
0,750
1,588
19,050
17,330
17,546
17,678
7/8-14
0,875
1,814
22,225
20,262
20,493
20,676
1-12
1,000
2,117
25,400
23,109
23,363
23,571
1 1/8-12
1,125
2,117
28,575
26,284
26,538
26,746
1 1/4-12
1,250
2,117
31,750
29,459
29,713
29,921
1 3/8-12
1,375
2,117
34,925
32,634
32,888
33,096
1 1/2-12
1,500
2,117
38,100
35,809
36,063
36,271