Heavy Hexagon Nuts ASTM A563M

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Heavy Hexagon Nuts ASTM A563M

Metric Series - Dimensions Physical Properties

The Nuts will generally conform to ANSI B18.2.4.6M - Metric Heavy Hexagonal Nuts.
Thread will conform to Class 6H of ANSI B1.13M for Coarse Series.

Material and Head Treatment:

To achieve mechanical properties of Property Class 8S or 10S of ASTM A 563M
Nuts of property Class 8S are used with bolts of ASTM A325M - Type 1 and 2 (con-coated)
Nuts of Property 10S are used with bolts of ASTM A325M - Type1 and 2 (Zinc Coated)
In Bolt/Nut assembly, tightening should be done by rotation of Nut.
Sizes in brackets are non-preferred standards.
All dimensions are in millimeters.

Dimension:

Thread Nut Dia and Thread Pitch

Total Runout of Bearing Surface FIM

Width Across Flats

Width Across Corners

Thickness

Bearing Face Dia

Washer Face Thickness

Max

Min

Max

Min

Max

Min

Max

Min

Max

M12 x 1.75

M14 x 2

M16 x 2

M20 x 2.5

21.00

24.00

27.00

34.00

20.16

23.16

26.16

33.00

24.25

27.71

31.18

39.26

22.78

26.17

29.56

37.29

12.3

14.3

17.1

20.7

11.9

13.6

16.4

19.4

19.2

22.0

24.9

31.4

0.8

0.4

0.38

0.42

0.47

0.58

M22 x 2.5

M24 x 3

M27 x 3

M30 x 3.5

36.00

41.00

46.00

50.00

35.00

40.00

45.00

49.00

51.57

47.34

53.12

57.74

39.55

45.20

50.85

55.37

23.6

24.2

27.6

30.7

22.3

22.9

26.3

29.1

33.3

38.0

42.8

46.6

0.8

0.4

0.63

0.72

0.80

0.87

M36 x 4

M42 x 4.5

M48 x 5

M56 5.5

60.00

70.00

80.00

90.00

58.80

67.90

77.60

87.20

69.28

80.83

92.38

103.92

66.44

77.41

88.46

99.41

36.6

42.0

48.0

56.0

35.0

40.4

46.4

54.1

55.9

64.5

73.7

82.8

0.8

1.0

0.4

0.5

1.05

1.22

1.40

1.57

M64 x 6

M72 x 6

M80 x 6

M90 x 6

M100 x 6

100.00

110.00

120.00

135.00

150.00

96.80

106.40

116.40

130.50

145.00

115.47

127.02

138.56

155.58

173.21

110.35

121.30

132.24

148.77

165.30

64.0

72.0

80.0

90.0

100.0

62.1

70.1

78.0

87.8

97.8

92.0

101.1

110.2

124.0

137.8

1.0

1.2

0.5

0.6

1.75

1.92

2.09

2.36

2.62

Physical Properties
Property Class	For Use with Bolts of Type and Finish	Proof Load Stress N/mm2	Rockwell Hardness HR
8S	ASTM A 325M Type 1 and 2 (Non coated)	1.075	B89 - C38
10S	ASTM A 325M Type 1 and 2 (Zinc coated)	1.245 (Normal Tapping) 1.165 (Oversize Tapping)	C26 - C38