ISO 4762, 12474

Similar DIN 912

Hexagon socket head cap screws

ISO 12474 with metric fine pitch thread

tech-iso4762




Thread Size
d		 M1.6 M2 M2.5
P Pitch 0.35 0.4 0.45
dk max For plain heads 3 3.8 4.5
For knurled heads 3.14 3.98 4.68
min 2.86 3.62 4.32
da max 2 2.6 3.1
ds max 1.6 2 2.5
min 1.46 1.86 2.36
e min 1.733 1.733 2.303
k max 1.6 2 2.5
min 1.46 1.86 2.36
s Nominal Size 1.5 1.5 2
max 1.58 1.58 2.08
min 1.52 1.52 2.02
t min 0.7 1 1.1
w min 0.55 0.55 0.85
Length of Thread b 15 16 17

Thread Size
d		 M3 M4 M5
P Pitch 0.5 0.7 0.8
dk max For plain heads 5.5 7 8.5
For knurled heads 5.68 7.22 8.72
min 5.32 6.78 8.28
da max 3.6 4.7 5.7
ds max 3 4 5
min 2.86 3.82 4.82
e min 2.873 3.443 4.583
k max 3 4 5
min 2.86 3.82 4.82
s Nominal Size 2.5 3 4
max 2.58 3.08 4.095
min 2.52 3.02 4.02
t min 1.3 2 2.5
w min 1.15 1.4 1.9
Length of Thread b 18 20 22

Thread Size
d		 M6 M8 M10
P Pitch 1 1.25 1.5
dk max For plain heads 10 13 16
For knurled heads 10.22 13.27 16.27
min 9.78 12.73 15.73
da max 6.8 9.2 11.2
ds max 6 8 10
min 5.82 7.78 9.78
e min 5.723 6.863 9.149
k max 6 8 10
min 5.7 7.64 9.64
s Nominal Size 5 6 8
max 5.14 6.14 8.175
min 5.02 6.02 8.025
t min 3 4 5
w min 2.3 3.3 4
Length of Thread b 24 28 32

Thread Size
d		 M12 (M14) M16
P Pitch 1.75 2 2
dk max For plain heads 18 21 24
For knurled heads 18.27 21.33 24.33
min 17.73 20.67 23.67
da max 13.7 15.7 17.7
ds max 12 14 16
min 11.73 13.73 15.73
e min 11.429 13.716 15.996
k max 12 14 16
min 11.57 13.57 15.57
s Nominal Size 10 12 14
max 10.175 12.212 14.212
min 10.025 12.032 14.032
t min 6 7 8
w min 4.8 5.8 6.8
Length of Thread b 36 40 44

Thread Size
d		 M20 M24 M30
P Pitch 2.5 3 3.5
dk max For plain heads 30 36 45
For knurled heads 30.33 36.39 45.39
min 29.67 35.61 44.61
da max 22.4 26.4 33.4
ds max 20 24 30
min 19.67 23.67 29.67
e min 19.437 21.734 25.154
k max 20 24 30
min 19.48 23.48 29.48
s Nominal Size 17 19 22
max 17.23 19.275 22.275
min 17.05 19.065 22.065
t min 10 12 15.5
w min 8.6 10.4 13.1
Length of Thread b 52 60 72

Thread Size
d		 M36 M42 M48
P Pitch 4 4.5 5
dk max For plain heads 54 63 72
For knurled heads 54.46 63.46 72.46
min 53.54 62.54 71.54
da max 39.4 45.6 52.6
ds max 36 42 48
min 35.61 41.61 47.61
e min 30.854 36.571 41.131
k max 36 42 48
min 35.38 41.38 47.38
s Nominal Size 27 32 36
max 27.275 32.33 36.33
min 27.065 32.08 36.08
t min 19 24 28
w min 15.3 16.3 17.5
Length of Thread b 84 96 108

Thread Size
d		 M56 M64
P Pitch 5.5 6
dk max For plain heads 84 96
For knurled heads 84.54 96.54
min 83.46 95.46
da max 63 71
ds max 56 64
min 55.54 63.54
e min 46.831 52.531
k max 56 64
min 55.26 63.26
s Nominal Size 41 46
max 41.33 46.33
min 41.08 46.08
t min 34 38
w min 19 22
Length of Thread b 124 140



*not standardized, reference values


All information is strictly informative