UNEF
ANSI B 1.1, BS 1580:1962

UNIFIKOVANÝ EXTRA 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
12-32
0,216
0,794
5,486
4,628
4,813
4,826
1/4-32
0,250
0,794
6,350
5,491
5,662
5,690
5/16-32
0,3125
0,794
7,938
7,079
7,231
7,264
3/8-32
0,375
0,794
9,525
8,666
8,811
8,865
7/16-28
0,4375
0,907
11,112
10,130
10,290
10,338
1/2-28
0,5000
0,907
12,700
11,717
11,877
11,938
9/16-24
0,5625
1,058
14,288
13,142
13,320
13,386
5/-24
0,625
1,058
15,875
14,729
14,907
14,986
11/16-24
0,6875
1,058
17,462
16,317
16,495
16,451
3/4-20
0,750
1,270
19,050
17,676
17,874
17,958
13/16-20
0,8125
1,270
20,638
19,263
19,461
19,558
7/8-20
0,875
1,270
22,225
20,851
21,049
21,133
15/16-20
0,9375
1,270
23,812
22,438
22,636
22,733
1-20
1,000
1,270
25,400
24,026
24,224
24,308
1 1/16-18
1,0625
1,411
26,988
25,461
25,667
25,781
1 1/8-18
1,125
1,411
28,575
27,048
27,254
27,381
1 3/16-18
1,1875
1,411
30,162
28,636
28,842
28,956
1 1/4-18
1,250
1,411
31,750
30,223
30,429
30,556
1 5-16-18
1,3125
1,411
33,338
31,811
32,017
32,131
1 3/8-18
1,375
1,411
34,925
33,398
33,604
33,731
1 7/16-18
1,4375
1,411
36,512
34,986
35,192
35,306
1 1/2-18
1,500
1,411
38,100
36,573
36,779
36,881
1 9/16-18
1,5625
1,411
39,688
38,161
38,367
38,481
1 5/8-18
1,625
1,411
41,275
39,748
39,954
40,081
1 11/16-18
1,6875
1,411
42,862
41,336
41,542
41,656