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Hexagon head bolt UNC
 
BS ≈1768
ANSI ≈B18.2.1
Technical Parameter


d

No.10

Threads per inch

24

LT (min.): L≤6.IN.

-

LT (min.): L>6.IN.

-

F

3

A

5/16

1/4

20

19

25

4

7/16

5/16

18

22

29

5,2

1/2

3/8

16

25

32

6

9/16

7/16

14

29

35

7,1

5/8

1/2

13

32

38

7,9

3/4

9/16

12

35

41

9,1

13/16

5/8

11

38

44

9,9

15/16

3/4

10

44

51

11,9

1.1/8

7/8

9

51

57

13,9

1.5/16

1.IN.

8

57

64

15,5

1.1/2

1.1/8

7

64

70

17,5

1.11/16

1.1/4

7

70

76

19,8

1.7/8

1.1/2

6

83

89

23,8

2.1/4


Product Category


Thread

Driving features

Material

Class

Surface treatment

Packaging

Code

Page

UNC

hexagon

St

Grade 5

Standard

02400

1-38

UNC

hexagon

St

Grade 5

Zipl

Standard

02420

1-39

UNC

hexagon

St.St. A2

Standard

51006

1-40

UNC

hexagon

St.St. A4

Standard

55006

1-41