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 Raised 60° Countersunk Head
  Also called Rounded 60° Countersunk Head         Metric Sizes

Solid 60 degree Raised Countersunk Head Rivet - schematic
 

Large Solid Metric Rivets for General Engineering Purposes

BS 4620 : 1970   Table 7.2   Raised 60° Countersunk Head
14 to 39 Millimetres Diameter - All Dimensions in Millimetres - All Materials

Shank Diameter

Head Diameter 

Head Depth

Depth of Raise

Length

Setting

  Nominal
  D

Tolerance
 

   Nominal
   A=1.5D

Tolerance
 

Nominal
B=0.43D

  Nominal
  C=0.2D

Tolerance
 

Tolerance
L

Allowance
S=0.483D

14

13.57 / 14.43

21

19.75 / 22.25

 6.0

 5.6

 5.6 /  6.0

+1.0

 6.76

16

15.57 / 16.43

24

22.75 / 25.25

 6.9

 6.4

 6.4 /  6.8

+1.0

 7.73

18

17.57 / 18.43

27

25.75 / 28.25

 7.7

 7.2

 7.2 /  7.6

+1.6

 8.69

20

19.48 / 20.52

30

28.20 / 31.80

 8.6

 8.0

 8.0 /  8.5

+1.6

 9.66

22

21.48 / 22.52

33

31.20 / 34.80

 9.5

 8.8

 8.8 /  9.3

+1.6

10.63

24

23.48 / 24.52

36

34.20 / 37.80

10.3

 9.6

 9.6 / 10.1

+1.6

11.59

27

26.38 / 27.62

40

37.50 / 42.50

11.6

10.8

10.8 / 11.4

+3.0

13.04

30

29.38 / 30.62

45

42.50 / 47.50

12.9

12.0

12.0 / 12.6

+3.0

14.49

33

32.38 / 33.62

50

47.50 / 52.50

14.2

13.2

13.2 / 13.8

+3.0

15.94

36

35.38 / 36.62

55

52.00 / 58.00

15.5

14.4

14.4 / 15.2

+3.0

17.39

39

38.38 / 39.62

59

56.00 / 62.00

16.8

15.6

15.6 / 16.4

+3.0

18.84

The Britsh Standard does not specify tolerances for Head Depth & Radius.
There is no negative tolerance on Shank Length.
The Countersink angle can vary between 57 and 62.
It is normal to have a radius under the head and at the periphery of the countersink
but no dimensions are specified.