DIN 125 Flat washer carbon steel zinc plated

Short Description:

Flat washers prevent sinking of bearing surfaces,The main role of flat washers is to increase the size of a screw's bearing surface area, and reduce the surface pressure applied on the fastened object.


Product Detail

Product Tags

Specification

Item Flat washer; Plain washer
Main products DIN125 DIN9021
Size M4-M64
Key words Flat round washer
Material Carbon steel: Q195, Q235, 1035, 1045, 65Mn
Grade 4.8,8.8,10.9,12.9
Standard GB, DIN, ISO, ANSI/ASTM, BS, BSW, JIS etc
Non-standards OEM is available, according to drawing or samples
Finish Plain, Zinc Plated(Clear/Blue/Yellow/Black), black , HDG, Dacromet
Certification ISO9001,SGS
Package 5kg 10kg 25kg bag/ carton+pallet or customized.
Application Heavy Industry, Retail Industry, General Industry, Automotive

hex bolt5

             Size

M

d

dc

h

For thread size

min

max

min

max

min

max

φ3.2

M3

3.2

3.38

6.64

7

0.45

0.55

φ3.7

M3.5

3.7

3.88

7.64

8

0.45

0.55

φ4.2

M4

4.3

4.48

8.64

9

0.7

0.9

φ5.3

M5

5.3

5.48

9.64

10

0.9

1.1

φ6.4

M6

6.4

6.62

11.57

12

1.4

1.8

φ7.4

M7

7.4

7.64

13.57

14

1.4

1.8

φ8.4

M8

8.4

8.64

15.57

16

1.4

1.8

φ10.5

M10

10.5

10.77

19.48

20

1.8

2.2

φ13

M12

13

13.27

23.48

24

2.3

2.7

φ15

M14

15

15.27

27.48

28

2.3

2.7

φ17

M16

17

17.27

29.48

30

2.7

3.3

φ19

M18

19

19.33

33.38

34

2.7

3.3

φ21

M20

21

21.33

36.38

37

2.7

3.3

φ23

M22

23

23.33

38.38

39

2.7

3.3

φ25

M24

25

25.33

43.38

44

3.7

4.3

φ27

M26

27

27.33

49.38

50

3.7

4.3

φ28

M27

28

28.33

49.38

50

3.7

4.3

φ29

M28

29

29.33

49.38

50

3.7

4.3

φ31

M30

31

31.39

55.26

56

3.7

4.3

φ33

M32

33

33.62

58.8

60

4.4

5.6

φ34

M33

34

34.62

58.8

60

4.4

5.6

φ36

M35

36

36.62

64.8

66

4.4

5.6

φ37

M36

37

37.62

64.8

66

4.4

5.6

φ39

M38

39

39.62

70.8

72

5.4

6.6

φ40

M39

40

40.62

70.8

72

5.4

6.6

φ41

M40

41

41.62

70.8

72

5.4

6.6

φ43

M41

43

43.62

76.8

78

6

8

φ46

M45

46

46.62

83.6

85

6

8

φ50

M48

50

50.62

90.6

92

7

9

φ52

M50

52

52.74

90.6

92

7

9

φ54

M52

54

54.74

96.6

98

7

9

φ57

M55

57

57.74

103.6

105

8

10

φ58

M56

58

58.74

103.6

105

8

10

φ60

M58

60

60.74

108.6

110

8

10

φ62

M60

62

62.74

108.6

110

8

10

φ66

M64

66

66.74

113.6

115

8

10

φ70

M68

70

70.74

118.6

120

9

11

φ74

M72

74

74.74

123.4

125

9

11

hex bolt5

More instructions about the flat washer

(1)What are flat washers for?
Flat washers prevent sinking of bearing surfaces,The main role of flat washers is to increase the size of a screw’s bearing surface area, and reduce the surface pressure applied on the fastened object.

(2)What is the difference between a flat washer and a fender washer?
A fender washer, though similar in shape to a standard washer, differs in that the outside diameter is traditionally much larger in proportion to the center hole. With this design, a fender washer can be placed under the head of a bolt or nut to help distribute forces applied when tightening.

(3)Do I need a flat washer with a lock washer?
Flat washers are used to increase the surface area in order to more evenly distribute the force applied with tightening the fastener. Lock washers are used as a means of creating tension during tightening in order to help keep the nut from working loose later.

(4)What goes first lock washer or flat washer?
When used correctly, a lock washer will hold the nut or other threaded fastener in place. To help it accomplish this, put the lock washer on first, below the fastener. If your project calls for other washers or hardware elements, they should go on before the lock washer so that it can hold them in place.


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