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DIN 94:1983 Cotter Pin

DIN 94:1983 Cotter Pin adopts a bendable cotter pin design to meet the needs of safety retention that prevents nuts, clevis pins, or hinged parts from loosening in service.

After being inserted through a hole, the pin legs are spread to create a simple mechanical stop; the design is low-cost, easy to inspect, and simple to replace. Its advantages lie in a clear installation method, well-defined load path, and good adaptability across different materials and installation spaces.

This product is suitable for vehicles, agricultural machinery, mechanical hinges, rigging connections, casters, and general equipment maintenance. Wire diameter, length, material, and plating can be adjusted for the final application, balancing cost control, corrosion protection, and assembly consistency.

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Dimensions unit: inch 

Nominal diameter d

0.6

0.8

1

1.2

1.6

2

2.5

3.2

d

Max.

0.5

0.7

0.9

1

1.4

1.8

2.3

2.9

Min.

0.4

0.6

0.8

0.9

1.3

1.7

2.1

2.7

α

Max.

1.6

1.6

1.6

2.5

2.5

2.5

2.5

3.2

Min.

0.8

0.8

0.8

1.25

1.25

1.25

1.25

1.6

b

≈

2

2.4

3

3

3.2

4

5

6.4

c

Max.

1

1.4

1.8

2

2.8

3.6

4.6

5.8

Min.

0.9

1.2

1.6

1.7

2.4

3.2

4

5.1

Thousand pieces of steel weigh ≈kg

-

-

-

-

-

-

-

-

  

Nominal diameter d

4

5

6.3

8

10

13

16

20

d

Max.

3.7

4.6

5.9

7.5

9.5

12.4

15.4

19.3

Min.

3.5

4.4

5.7

7.3

9.3

12.1

15.1

19

α

Max.

4

4

4

4

6.3

6.3

6.3

6.3

Min.

2

2

2

2

3.2

3.2

3.2

3.2

b

≈

8

10

12.6

16

20

26

32

40

c

Max.

7.4

9.2

11.8

15

19

24.8

30.8

38.6

Min.

6.5

8

10.3

13.1

16.6

21.7

27

33.8

Thousand pieces of steel weigh ≈kg

-

-

-

-

-

-

-

-

 

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