ISO 2009

Replace DIN 963

Slotted countersunk flat head screws

tech-iso2009




Thread Size
d		 M1.6 M2 M2.5 M3
P Pitch 0.35 0.4 0.45 0.5
a max 0.7 0.8 0.9 1
dk Theoretical max 3.6 4.4 5.5 6.3
Actual max=nominal size 3 3.8 4.7 5.5
min 2.7 3.5 4.4 5.2
k max=nominal size 1 1.2 1.5 1.65
n Nominal Size 0.4 0.5 0.6 0.8
max 0.6 0.7 0.8 1
min 0.46 0.56 0.66 0.86
r max 0.4 0.5 0.6 0.8
t max 0.5 0.6 0.75 0.85
min 0.32 0.4 0.5 0.6
x max 0.9 1 1.1 1.25
Length of Thread b 15 16 18 19

Thread Size
d		 (M3.5) M4 M5
P Pitch 0.6 0.7 0.8
a max 1.2 1.4 1.6
dk Theoretical max 8.2 9.4 10.4
Actual max=nominal size 7.3 8.4 9.3
min 6.94 8.04 8.94
k max=nominal size 2.35 2.7 2.7
n Nominal Size 1 1.2 1.2
max 1.2 1.51 1.51
min 1.06 1.26 1.26
r max 0.9 1 1.3
t max 1.2 1.3 1.4
min 0.9 1 1.1
x max 1.5 1.75 2
Length of Thread b 20 22 25

Thread Size
d		 M6 M8 M10
P Pitch 1 1.25 1.5
a max 2 2.5 3
dk Theoretical max 12.6 17.3 20
Actual max=nominal size 11.3 15.8 18.3
min 10.87 15.37 17.78
k max=nominal size 3.3 4.65 5
n Nominal Size 1.6 2 2.5
max 1.91 2.31 2.81
min 1.66 2.06 2.56
r max 1.5 2 2.5
t max 1.6 2.3 2.6
min 1.2 1.8 2
x max 2.5 3.2 3.8
Length of Thread b 28 34 40



*minimum lengths
1) only with thread up to near the head


All information is strictly informative