DIN Fastener:

Nom. Dia.

d1

c

a max.

b approx.

min.

max.

min.

max.

1

0.8

0.9

1.6

1.8

1.6

3

1.2

0.9

1

1.7

2

2.5

3

1.6

1.3

1.4

2.4

2.8

2.5

3.2

2

1.7

1.8

3.2

3.6

2.5

4

2.5

2.1

2.3

4

4.6

2.5

5

3.2

2.7

2.9

5.1

5.8

3.2

6.4

4

3.5

3.7

6.5

7.4

4

8

5

4.4

4.6

8

9.2

4

10

6.3

5.7

5.9

10.3

11.8

4

12.6

8

7.3

7.5

13.1

15

4

16

10

9.3

9.5

16.6

19

6.3

20

13

12.1

12.4

21.7

24.8

6.3

26