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DIN 443:2017 Washer

DIN 443:2017 Sealing Push-In Cap Washer is used to close and protect holes, shaft ends, or assembly openings. The push-in structure allows quick installation and can help block dust, debris, or minor splashes from entering the internal area.

It can be used in machinery housings, instruments, bearing ends, stamped parts, and repair plugging positions. Its function is not limited to covering an opening; it can also improve appearance and reduce the risk of interference between exposed edges and personnel or wiring.

Specifications can be selected according to hole diameter, material elasticity, sealing requirement, and appearance need, making it suitable for general protection, temporary closure, and light sealing applications.

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PREV：DIN 463:1974 Washer NEXT：DIN 5405 (-3):2016 Washer

Dimensions unit: mm

Thread size

8

10

12

14

15

16

18

20

22

24

d

 

 

 

 

 

 

 

 

 

 

d

Max.

8.155

10.155

12.2

14.2

15.22

16.22

18.22

20.272

22.272

24.272

Min.

8.097

10.097

12.13

14.13

15.15

16.15

18.15

20.188

22.188

24.188

h

Nominal（js）

3

3

4

5

5

5

6

6

7

7

Max.

3.3

3.3

4.375

5.375

5.375

5.375

6.375

6.375

7.45

7.45

Min.

2.7

2.7

3.625

4.625

4.625

4.625

5.625

5.625

6.55

6.55

r1

20

25

30

35

38

40

45

50

55

60

r2

1

1

1

1

1

1

1

1

1.6

1.6

s

Nominal

0.75

0.75

1

1

1

1

1

1

1.6

1.6

Max.

0.9

0.9

1.15

1.15

1.15

1.15

1.15

1.15

1.75

1.75

Min.

0.6

0.6

0.85

0.85

0.85

0.85

0.85

0.85

1.45

1.45

 Weight per thousand pieces kg 

≈

0.72

0.97

2

2.98

3.2

3.55

4.83

5.55

10.8

12.3

   

Thread size

25

28

30

36

40

42

45

50

56

63

d

 

 

 

 

 

 

 

 

 

 

d

Max.

25.302

28.302

30.302

36.374

40.374

42.425

45.425

50.425

56.525

63.525

Min.

25.218

28.218

30.218

36.274

40.274

42.325

45.325

50.325

56.405

63.405

h

Nominal（js）

8

9

9

11

12

13

14

15

17

19

Max.

8.45

9.45

9.45

11.55

12.55

13.55

14.55

15.55

17.55

19.65

Min.

7.55

8.55

8.55

10.45

11.45

12.45

13.45

14.45

16.45

18.35

r1

60

70

75

90

100

105

110

125

140

160

r2

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

2.5

2.5

s

Nominal

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

2

2

Max.

1.75

1.75

1.75

1.75

1.75

1.75

1.75

1.75

2.15

2.15

Min.

1.45

1.45

1.45

1.45

1.45

1.45

1.45

1.45

1.85

1.85

 Weight per thousand pieces kg 

≈

14.3

18.2

20

29.9

36.7

41.7

48.3

58.6

91.2

116

 

① Material:

a) Steel DC03 according to DIN EN 10130, DIN EN 10139; strength grade (material): selected by the manufacturer

b) Other materials according to the agreement.

c) Other intensity levels or specific intensity attributes according to agreement 

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