High Strength Hex Bolt Din 931 / ISO4014 CL 8.8

High Strength Hex Bolt, manufactured to DIN 931/ISO4014 standards, features a Class 8.8 rating for maximum durability and performance. These bolts are ideal for heavy-duty applications that require high load-bearing capacity and resistance to wear and tear. Made from premium-grade materials, our hex bolts are corrosion-resistant and built to withstand extreme temperatures and environmental conditions. With a precision-engineered design and a range of sizes available, our High Strength Hex Bolt is the perfect choice for any industrial or construction project that demands superior quality and reliability. Trust us to provide you with the best solution for your bolting needs.
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Products Details

Screw Thread d

M1.6

M2

M2.5

M3

(M3.5)

M4

M5

M6

(M7)

M8

M10

M12

P

Pitch

0.35

0.4

0.45

0.5

0.6

0.7

0.8

1

1

1.25

1.5

1.75

b

L≤125

9

10

11

12

13

14

16

18

20

22

26

30

125＜L≤200

15

16

17

18

19

20

22

24

26

28

32

36

L＞200

28

29

30

31

32

33

35

37

39

41

45

49

c

max

0.25

0.25

0.25

0.4

0.4

0.4

0.5

0.5

0.6

0.6

0.6

0.6

min

0.1

0.1

0.1

0.15

0.15

0.15

0.15

0.15

0.15

0.15

0.15

0.15

da

max

2

2.6

3.1

3.6

4.1

4.7

5.7

6.8

7.8

9.2

11.2

13.7

ds

max=nominal size

1.6

2

2.5

3

3.5

4

5

6

7

8

10

12

Grade A

min

1.46

1.86

2.36

2.86

3.32

3.82

4.82

5.82

6.78

7.78

9.78

11.73

Grade B

min

1.35

1.75

2.25

2.75

3.2

3.7

4.7

5.7

6.64

7.64

9.64

11.57

dw

Grade A

min

2.54

3.34

4.34

4.84

5.34

6.2

7.2

8.88

9.63

11.63

14.63

16.63

Grade B

min

2.42

3.22

4.22

4.72

5.22

6.06

7.06

8.74

9.47

11.47

14.47

16.47

e

Grade A

min

3.41

4.32

5.45

6.01

6.58

7.66

8.79

11.05

12.12

14.38

17.77

20.03

Grade B

min

3.28

4.18

5.31

5.88

6.44

7.5

8.63

10.89

11.94

14.2

17.59

19.85

L1

max

0.6

0.8

1

1

1

1.2

1.2

1.4

1.4

2

2

3

k

Nominal Size

1.1

1.4

1.7

2

2.4

2.8

3.5

4

4.8

5.3

6.4

7.5

Grade A

max

1.225

1.525

1.825

2.125

2.525

2.925

3.65

4.15

4.95

5.45

6.58

7.68

min

0.975

1.275

1.575

1.875

2.275

2.675

3.35

3.85

4.65

5.15

6.22

7.32

Grade B

max

1.3

1.6

1.9

2.2

2.6

3

3.74

4.24

5.04

5.54

6.69

7.79

min

0.9

1.2

1.5

1.8

2.2

2.6

3.26

3.76

4.56

5.06

6.11

7.21

k1

Grade A

min

0.68

0.89

1.1

1.31

1.59

1.87

2.35

2.7

3.26

3.61

4.35

5.12

Grade B

min

0.63

0.84

1.05

1.26

1.54

1.82

2.28

2.63

3.19

3.54

4.28

5.05

r

min

0.1

0.1

0.1

0.1

0.1

0.2

0.2

0.25

0.25

0.4

0.4

0.6

s

max=nominal size

3.2

4

5

5.5

6

7

8

10

11

13

16

18

Grade A

min

3.02

3.82

4.82

5.32

5.82

6.78

7.78

9.78

10.73

12.73

15.73

17.73

Grade B

min

2.9

3.7

4.7

5.2

5.7

6.64

7.64

9.64

10.57

12.57

15.57

17.57

Length of Thread b

-

-

-

-

-

-

-

-

-

-

-

-

Screw Thread d

(M14)

M16

(M18)

M20

(M22)

M24

(M27)

M30

(M33)

M36

(M39)

M42

P

Pitch

2

2

2.5

2.5

2.5

3

3

3.5

3.5

4

4

4.5

b

L≤125

34

38

42

46

50

54

60

66

72

-

-

-

125＜L≤200

40

44

48

52

56

60

66

72

78

84

90

96

L＞200

53

57

61

65

69

73

79

85

91

97

103

109

c

max

0.6

0.8

0.8

0.8

0.8

0.8

0.8

0.8

0.8

0.8

1

1

min

0.15

0.2

0.2

0.2

0.2

0.2

0.2

0.2

0.2

0.2

0.3

0.3

da

max

15.7

17.7

20.2

22.4

24.4

26.4

30.4

33.4

36.4

39.4

42.4

45.6

ds

max=nominal size

14

16

18

20

22

24

27

30

33

36

39

42

Grade A

min

13.73

15.73

17.73

19.67

21.67

23.67

-

-

-

-

-

-

Grade B

min

13.57

15.57

17.57

19.48

21.48

23.48

26.48

29.48

32.38

35.38

38.38

41.38

dw

Grade A

min

19.64

22.49

25.34

28.19

31.71

33.61

-

-

-

-

-

-

Grade B

min

19.15

22

24.85

27.7

31.35

33.25

38

42.75

46.55

51.11

55.86

59.95

e

Grade A

min

23.36

26.75

30.14

33.53

37.72

39.98

-

-

-

-

-

-

Grade B

min

22.78

26.17

29.56

32.95

37.29

39.55

45.2

50.85

55.37

60.79

66.44

71.3

L1

max

3

3

3

4

4

4

6

6

6

6

6

8

k

Nominal Size

8.8

10

11.5

12.5

14

15

17

18.7

21

22.5

25

26

Grade A

max

8.98

10.18

11.715

12.715

14.215

15.215

-

-

-

-

-

-

min

8.62

9.82

11.285

12.285

13.785

14.785

-

-

-

-

-

-

Grade B

max

9.09

10.29

11.85

12.85

14.35

15.35

17.35

19.12

21.42

22.92

25.42

26.42

min

8.51

9.71

11.15

12.15

13.65

14.65

16.65

18.28

20.58

22.08

24.58

25.58

k1

Grade A

min

6.03

6.87

7.9

8.6

9.65

10.35

-

-

-

-

-

-

Grade B

min

5.96

6.8

7.81

8.51

9.56

10.26

11.66

12.8

14.41

15.46

17.21

17.91

r

min

0.6

0.6

0.6

0.8

0.8

0.8

1

1

1

1

1

1.2

s

max=nominal size

21

24

27

30

34

36

41

46

50

55

60

65

Grade A

min

20.67

23.67

26.67

29.67

33.38

35.38

-

-

-

-

-

-

Grade B

min

20.16

23.16

26.16

29.16

33

35

40

45

49

53.8

58.8

63.1

Length of Thread b

-

-

-

-

-

-

-

-

-

-

Screw Thread d

(M45)

M48

(M52)

M56

(M60)

M64

P

Pitch

4.5

5

5

5.5

5.5

6

b

L≤125

-

-

-

-

-

-

125＜L≤200

102

108

116

-

-

-

L＞200

115

121

129

137

145

153

c

max

1

1

1

1

1

1

min

0.3

0.3

0.3

0.3

0.3

0.3

da

max

48.6

52.6

56.6

63

67

71

ds

max=nominal size

45

48

52

56

60

64

Grade A

min

-

-

-

-

-

-

Grade B

min

44.38

47.38

51.26

55.26

59.26

63.26

dw

Grade A

min

-

-

-

-

-

-

Grade B

min

64.7

69.45

74.2

78.66

83.41

88.16

e

Grade A

min

-

-

-

-

-

-

Grade B

min

76.95

82.6

88.25

93.56

99.21

104.86

L1

max

8

10

10

12

12

13

k

Nominal Size

28

30

33

35

38

40

Grade A

max

-

-

-

-

-

-

min

-

-

-

-

-

-

Grade B

max

28.42

30.42

33.5

35.5

38.5

40.5

min

27.58

29.58

32.5

34.5

37.5

39.5

k1

Grade A

min

-

-

-

-

-

-

Grade B

min

19.31

20.71

22.75

24.15

26.25

27.65

r

min

1.2

1.6

1.6

2

2

2

s

max=nominal size

70

75

80

85

90

95

Grade A

min

-

-

-

-

-

-

Grade B

min

68.1

73.1

78.1

82.8

87.8

92.8

Length of Thread b

-

-

-

-

-

-

Products name HEX BOLT DIN 931/ISO4014 half thread
Standard DIN,ASTM/ANSI JIS EN ISO,AS,GB
Grade Steel Grade: DIN: Gr.4.6,4.8,5.6,5.8,8.8,10.9,12.9; SAE: Gr.2,5,8; ASTM: 307A,A325,A490,
Finishing Zinc(Yellow,White,Blue,Black),Hop Dip Galvanized(HDG),Black Oxide, Geomet,Dacroment,anodization,Nickel plated,Zinc-Nickel plated
Production Process M2-M24:Cold Froging,M24-M100 Hot Forging, Machining and CNC for Customized fastener
Customized Products Lead time 30-60days,
Our High Strength Hex Bolt Din 931 / ISO4014 CL 8.8 is a top-notch fastener that is engineered to meet the highest standards of quality and performance. This bolt has a strength rating of 8.8, making it perfect for applications that require a high level of durability and reliability. Made from premium-grade steel, this bolt is designed to resist corrosion and wear, ensuring a long service life even in harsh conditions. Its hexagonal head allows for easy installation and removal with a standard wrench or socket, while its partial thread design grants it greater grip and holding power. This bolt is suitable for a wide range of industrial and construction applications, including automotive repairs, machinery assembly, and structural projects. Its versatility and strength make it a go-to choice for professionals who need a reliable fastening solution that won't let them down. So if you need a fastener that can stand up to the toughest conditions, look no further than our High Strength Hex Bolt Din 931 / ISO4014 CL 8.8. With its superior quality and performance, it is sure to provide the durability and reliability you need to get the job done right.

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