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Hexagon socket countersunk head screw UNC
 
BS ≈2470
ANSI ≈B18.3
Technical Parameter

d

No.2

Threads per inch

56

LT (min.)

16

H

1.63

A

5

J

0.050

No.4

40

19

2,11

6,48

1/16

No.5

40

19

2,29

7,14

5/64

No.6

32

19

2,45

7,8

5/64

No.8

32

22

2,84

9,12

3/32

No.10

24

22

3,2

10,4

1/8

1/4

20

25

4,1

13,4

5/32

5/16

18

28

5

16,6

3/16

3/8

16

32

5,9

19,8

7/32

1/2

13

38

6,4

23,8

5/16

5/8

11

45

8,2

30,1

3/8

Product Category

Thread

Driving features                                      Material          Class                 Packaging    Code

UNC

hexagon socket                                       St                     010.9/10.9          Standard        07610