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 Round Head Rivets
  Also called Button, Cup, Dome or Snap Head       Metric Sizes

Solid Round or Snap Head Rivet - schematic
 

Large Solid Metric Rivets for General Engineering Purposes

DIN 124   Round Head Rivets
10 to 36 Millimetres Diameter - All Dimensions in Millimetres - All Materials

Shank Diameter

Head Diameter 

Head Depth

Setting

  Nominal
  D

Tolerance
 

   Nominal
   A=1.6D

Tolerance
 

Nominal
B=0.65D

Tolerance
 

Allowance
S=1.015D

10

 9.4 / 10.2

16

14.9 / 16.0

6.5

6.5 / 7.4

10.15

12

11.3 / 12.2

19

17.7 / 19.0

7.5

7.5 / 8.4

12.18

14

13.2 / 14.2

22

20.7 / 22.0

9.0

9.0 / 9.9

14.21

16

15.2 / 16.2

25

23.7 / 25.0

10.0 

10.0 / 10.9

16.24

18

17.1 / 18.2

28

26.7 / 28.0

11.5 

11.5 / 12.6

18.27

20

19.1 / 20.2

32

30.4 / 32.0

13.0 

13.0 / 14.1

20.30

22

20.9 / 22.2

36

34.4 / 36.0

14.0 

14.0 / 15.1

22.33

24

22.9 / 24.3

40

38.4 / 40.0

16.0 

16.0 / 17.1

24.36

  25 *

23.8 / 25.3

40

38.4 / 40.0

16.0 

16.0 / 17.1

25.38

27

25.8 / 27.3

43

41.4 / 43.0

17.0 

17.0 / 18.1

27.41

30

28.6 / 30.3

48

46.4 / 48.0

19.0 

19.0 / 20.3

30.45

33

31.6 / 33.3

53

51.1 / 53.0

21.0 

21.0 / 22.3

33.50

36

34.6 / 36.3

58

56.1 / 58.0

23.0 

23.0 / 24.3

36.54

There is no negative tolerance on Head Depth and Shank Length.
There is a positive tolerance on Head Diameter.
Shank Length has a positive tolerance (ranging +0.7 to +1.6) depending on actual length.
It is normal to have a radius under the head.
DIN 124 is the same as BS 4620 Table 2, but with differing tolerances.
* This Diameter is not specifically denoted in DIN124.