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Bolts

A range that was shaped by ingenuity


and modelled by experience.

Bolts

To complete the range of customers’ requirements, Bea supplied bolts (Hex head bolts, round head socket cap-screws) made primarily in special materials. These are produced on specific hot forging equipment.

Bolts
ASTM A453 660 /1.4980

Highly creep and corrosion resistant, precipitation hardening austenitic steel. Scaling resistance in air up to appr. 800°C.

UNS S32760 / ASTM A182 F55

Ferritic-austenitic stainless steel. Excellent corrosion resistance against general corrosion, stress corrosion cracking, corrosion fatigue, pitting, crevice and erosion corrosion and possessing very high mechanical strength properties.

ALLOY 718

High temperature, precipitation hardening, nickel-base alloy with particularly high hot strength and yield strength up to 750°C, and excellent creep behaviour up to 700°C. The markedly higher hot strength compare with normal hot work steels in particularly noticeable when used for hot work tools with high mechanical and thermal stresses.

ALLOY 625

Is a non-magnetic, corrosion and oxidation – resistance, nickel based alloy. High toughness and strength in the temperature range cryogenic to 1000°C. The alloy as excellent fatigue strength and stress corrosion cracking resistance to chloride ions.

ALLOY 925

Is as age-hardenable nickel-iron-chromium alloy. Is used in various applications requiring a combination of high strength and corrosion resistance.

MONEL 400

Is a solid-solution alloy that can be hardened only by cold working. It has high strength and toughness over a wide temperature range and excellent resistance to many corrosive environments. It is widely used in many fields, especially marine and chemical processing.

MONEL 500

Is a nickel-copper alloy with combines the excellent corrosion resistance of Monel 400 with the added advantages of greater strength and hardness. The increased properties are obtained by adding aluminium and titanium to the nickel-copper base by heating.

DUPLEX

Ferritic-austenitic stainless steel also referred to as DUPLEX STAINLESS STEELS, combine many of beneficial properties of ferritic and austenitic steels. Due to the high content of chromium and nitrogen, and often also molybdenum, these steels offer good resistance to localised and uniform corrosion. The duplex microstructure contributes to the high strength and high resistance to stress corrosion cracking.

SUPERDUPLEX

A Super Duplex stainless steel is a type of Duplex stainless steel with enhanced corrosion resistance which is categorised by its PREN being greater than 40. The Pitting Resistance Equivalent Number (PREN) is widely used as a means of comparing the relative corrosion resistance of different steel grades.

ASTM A193

Standard Specification for Alloy-Steel and Stainless Steel Bolting for High Temperature or High Pressure Service and Other Special Purpose Applications.

ASTM A320

Standard Specification for Alloy-Steel and Stainless Steel Bolting for Low-Temperature Service.

ASTM F467

Standard Specification for Nonferrous Nuts for General Use.

ASTM F468

Standard Specification for Nonferrous Bolts, Hex Cap Screws, Socket Head Cap Screws, and Studs for General Use.


BOLTS

 

 

DIMENSIONS OF SOCKET HEAD CAP SCREWS in mm - ANSI/ASME B 18.3 - TABLE 1A

Nominal

Size

D

A

H

C

J

T

LT

Body

Head

Head

Chamfer

Hex Socket

Key

Thread

Diameter

Diameter

Height

 

Size

Engagement

Length

min

max

min

max

min

max

max

Nom

min

 

1/4

6,18

6,35

9,27

9,53

6,20

6,35

0,64

4,78

3,05

25,40

5/16

7,57

7,94

11,61

11,91

7,77

7,92

0,84

6,35

3,84

28,40

3/8

9,14

9,53

13,97

14,27

9,35

9,53

1,02

7,92

4,62

31,80

7/16

10,69

11,11

16,31

16,66

10,92

11,13

1,19

9,53

5,41

35,10

1/2

12,24

13,08

18,67

19,05

12,50

12,70

1,40

9,53

6,22

38,10

9/16

14,07

14,29

21,01

21,41

14,07

14,27

1,57

11,10

7,01

38,10

5/8

15,37

16,31

23,39

23,83

15,65

15,88

1,78

12,70

7,80

44,50

3/4

18,52

19,51

28,12

28,58

18,80

19,05

2,16

15,88

9,40

50,80

7/8

21,64

22,73

32,84

33,32

21,95

22,23

2,54

19,05

10,97

57,20

1

24,79

25,96

37,57

38,10

25,10

25,40

2,90

19,05

12,57

63,50

1 1/8

27,89

29,18

42,29

42,88

28,22

28,58

3,28

22,23

14,15

71,40

1 1/4

31,06

32,44

47,04

47,63

31,39

31,75

3,66

22,23

15,75

79,20

1 3/8

34,16

35,66

51,77

52,37

34,54

34,93

4,06

25,40

17,32

87,40

1 1/2

37,34

38,89

56,49

57,15

37,72

38,10

4,47

25,40

18,92

95,30

1 3/4

43,59

45,34

65,96

66,68

44,04

44,45

5,26

31,75

22,10

111,30

2

49,89

51,79

75,44

76,20

50,37

50,80

6,05

38,10

25,27

127,00

2 1/4

56,24

58,55

84,94

85,73

56,69

57,15

6,83

44,45

28,45

142,70

2 1/2

62,51

65,00

94,41

95,25

63,02

63,50

7,62

44,45

31,62

158,80

2 3/4

68,86

71,81

103,89

104,78

69,34

69,85

8,43

50,80

34,80

174,80

3

75,21

78,26

113,39

114,30

75,67

76,20

9,22

57,15

37,97

190,50

DIMENSIONS OF SOCKET HEAD CAP SCREWS

DIN 912

Nominal

Size

D

A

H

J

T

LT

Body

Head

Head

Hex Socket

Key

Thread

Diameter

Diameter

Height

Size

Engagement

Length

min

max

min

max

min

max

min

max

min

 

M 6

5,82

6,00

9,78

10,00

5,70

6,00

5,02

5,14

3,00

30

M 8

7,78

8,00

12,73

13,00

7,64

8,00

6,02

6,14

4,00

35

M 10

9,78

10,00

15,73

16,00

9,64

10,00

8,03

8,18

5,00

40

M 12

11,73

12,00

17,73

18,00

11,57

12,00

10,03

10,18

6,00

50

M 14

13,73

14,00

20,67

21,00

13,57

14,00

12,03

12,21

7,00

55

M 16

15,73

16,00

23,67

24,00

15,57

16,00

14,03

14,21

8,00

60

M 18

17,73

18,00

26,67

27,00

17,57

18,00

14,03

14,21

9,00

65

M 20

19,67

20,00

29,67

30,00

19,48

20,00

17,05

17,23

10,00

70

M 22

21,67

22,00

32,61

33,00

21,48

22,00

17,05

17,23

11,00

70

M 24

23,67

24,00

35,61

36,00

23,48

24,00

19,07

19,28

12,00

80

M 27

26,67

27,00

39,61

40,00

26,48

27,00

19,07

19,28

13,50

90

M 30

29,67

30,00

44,61

45,00

29,48

30,00

22,07

22,28

15,50

100

M 33

32,61

33,00

49,61

50,00

32,38

33,00

24,07

24,28

18,00

100

M 36

35,61

36,00

53,54

54,00

35,38

36,00

27,07

27,28

19,00

110

M 39

38,61

39,00

57,54

58,00

38,38

39,00

27,07

27,28

21,00

120

M 42

41,61

42,00

62,54

63,00

41,38

42,00

32,08

32,33

24,00

130

M 45

44,61

45,00

66,54

67,00

44,38

45,00

32,08

32,33

26,00

140

M 48

47,61

48,00

71,54

72,00

47,38

48,00

36,08

36,33

28,00

150

M 52

51,54

52,00

77,48

78,00

51,26

52,00

36,08

36,33

31,00

150

Dimensions in mm



 
 

 

 

 

DIMENSIONS OF HEX BOLTS in mm - ANSI/ASME 18.2.1 - TABLE 2

Nominal

Size

E

F

G

H

LT

Y

Body

Width

Width

Height

Thread Lenght

 

Diameter

Across Flats

Across Corners

 

up to 6”

over 6”

 

min

max

min

max

min

max

min

max

basic

basic

max

1/4

6,00

6,60

10,80

11,10

12,80

12,30

3,80

4,80

19,00

25,40

-

5/16

7,60

8,20

12,30

12,70

14,70

14,00

5,00

6,00

22,20

28,60

-

3/8

9,10

9,90

13,80

14,30

16,50

15,70

5,70

6,80

25,40

31,80

-

7/16

10,70

11,50

15,30

15,90

18,30

17,40

6,90

8,00

28,60

64,90

-

DIMENSIONS OF HEAVY HEX BOLTS - ANSI/ASME 18.2.1 - TABLE 3

3/8

9,10

9,80

17,00

17,50

19,40

20,20

5,70

6,80

25,40

31,80

7,90

1/2

12,24

13,08

21,60

22,20

24,60

25,70

7,70

9,20

31,80

38,10

9,80

5/8

15,37

16,31

26,20

27,00

29,80

31,20

9,30

11,30

38,10

44,50

11,60

3/4

18,52

19,51

30,80

31,80

35,10

36,70

11,60

13,30

44,50

50,80

12,70

7/8

21,64

22,73

35,40

36,50

40,40

42,20

13,50

15,30

50,80

57,20

14,10

1

24,79

25,96

40,00

41,30

45,60

47,70

15,00

17,80

57,20

63,50

15,90

1 1/8

27,89

29,18

44,60

46,00

50,90

53,20

16,70

19,80

63,50

69,90

18,10

1 1/4

31,06

32,44

49,20

50,80

59,10

58,60

19,00

22,30

69,90

76,20

18,10

1 3/8

34,16

35,66

53,80

55,60

61,40

64,20

20,60

23,90

76,20

82,60

21,20

1 1/2

37,34

38,89

58,40

60,30

66,60

69,60

22,90

26,30

82,60

88,90

21,20

1 3/4

43,59

45,34

67,60

69,90

77,10

80,40

26,80

30,40

95,30

101,60

25,40

2

49,89

51,79

76,80

79,40

87,60

91,60

29,80

35,30

108,00

114,30

28,20

2 1/4

56,24

58,55

86,10

88,90

98,10

102,60

33,70

39,30

120,70

127,00

28,20

2 1/2

62,51

65,00

95,30

98,40

108,30

113,60

37,60

43,40

133,40

139,70

31,80

2 3/4

68,86

71,81

104,40

108,00

119,10

124,60

41,50

47,50

146,10

152,40

31,80

3

75,21

78,26

113,70

117,50

129,60

135,60

46,10

52,50

158,80

165,10

31,80

DIMENSIONS OF HEXAGONAL BOLTS - DIN 931 - DIN 933

Nominal

Size

E

F

G

H

LT

Body

Width

Width

Height

Thread Length

Diameter

Across Flats

Across Corners

 

up to 120

op to 200

over 200

min

max

min

max

min

min

max

     

M 6

5,82

6,00

9,78

10,00

11,05

3,85

4,00

18

24

 

M 8

7,78

8,00

12,57

13,00

14,38

5,06

5,54

22

28

 

M 10

9,78

10,00

16,57

17,00

18,90

6,11

6,69

26

32

45

M 12

11,73

12,00

18,48

19,00

21,10

7,21

7,79

30

36

49

M 14

13,73

14,00

21,16

22,00

24,49

8,51

9,09

34

40

53

M 16

15,73

16,00

23,16

24,00

26,75

9,71

10,29

38

44

57

M 18

17,73

18,00

26,16

27,00

30,14

11,15

11,85

42

48

61

M 20

19,67

20,00

29,16

30,00

33,53

12,15

12,85

46

52

65

M 22

21,67

22,00

31,00

32,00

35,72

13,65

14,35

50

56

69

M 24

23,67

24,00

35,00

36,00

39,98

14,65

15,35

54

60

73

M 27

26,48

27,00

40,00

41,00

45,20

16,65

17,35

60

66

79

M 30

29,48

30,00

45,00

46,00

50,85

18,28

19,12

66

72

85

M 33

32,38

33,00

49,00

50,00

55,37

20,58

21,42

72

78

91

M 36

35,38

36,00

53,80

55,00

60,79

22,80

22,92

78

84

97

M 39

38,38

39,00

58,80

60,00

66,44

24,58

25,42

84

90

103

M 42

41,38

42,00

63,10

65,00

71,30

25,58

26,42

90

96

109

M 45

44,38

45,00

66,10

70,00

76,95

27,58

28,42

96

102

115

M 48

47,38

48,00

73,10

75,00

82,60

29,58

30,42

102

108

121

M 52

51,26

52,00

78,10

80,00

88,25

32,50

33,50

 

116

129

Dimensions in mm