DIN 912

Hexagon socket head cap screws

tech-din912




Thread Size
d		 M1.4 M1.6 M2
P Pitch Coarse thread 0.3 0.35 0.4
Fine thread pitch-1 - - -
Fine thread pitch-2 - - -
dk plain head max 2.6 3 3.8
knurled heads max 2.74 3.14 3.98
min 2.46 2.86 3.62
da max 1.8 2 2.6
ds max 1.4 1.6 2
min 1.26 1.46 1.86
e min 1.5 1.73 1.73
k max 1.4 1.6 2
min 1.26 1.46 1.86
s Nominal Size 1.3 1.5 1.5
min 1.32 1.52 1.52
max 1.36 1.56 1.56
t min 0.6 0.7 1
w min 0.5 0.55 0.55
Length of Thread b 14 15 16

Thread Size
d		 M2.5 M3 M4
P Pitch Coarse thread 0.45 0.5 0.7
Fine thread pitch-1 - - -
Fine thread pitch-2 - - -
dk plain head max 4.5 5.5 7
knurled heads max 4.68 5.68 7.22
min 4.32 5.32 6.78
da max 3.1 3.6 4.7
ds max 2.5 3 4
min 2.36 2.86 3.82
e min 2.3 2.87 3.44
k max 2.5 3 4
min 2.36 2.86 3.82
s Nominal Size 2 2.5 3
min 2.02 2.52 3.02
max 2.06 2.58 3.08
t min 1.1 1.3 2
w min 0.85 1.15 1.4
Length of Thread b 17 18 20

Thread Size
d		 M5 M6 M8
P Pitch Coarse thread 0.8 1 1.25
Fine thread pitch-1 - - 1
Fine thread pitch-2 - - -
dk plain head max 8.5 10 13
knurled heads max 8.72 10.22 13.27
min 8.28 9.78 12.73
da max 5.7 6.8 9.2
ds max 5 6 8
min 4.82 5.82 7.78
e min 4.58 5.72 6.86
k max 5 6 8
min 4.82 5.7 7.64
s Nominal Size 4 5 6
min 4.02 5.02 6.02
max 4.095 5.14 6.14
t min 2.5 3 4
w min 1.9 2.3 3
Length of Thread b 22 24 28

Thread Size
d		 M10 M12 (M14)
P Pitch Coarse thread 1.5 1.75 2
Fine thread pitch-1 1.25 1.25 1.5
Fine thread pitch-2 1 1.5 -
dk plain head max 16 18 21
knurled heads max 16.27 18.27 21.33
min 15.73 17.73 20.67
da max 11.2 13.7 15.7
ds max 10 12 14
min 9.78 11.73 13.73
e min 9.15 11.43 13.72
k max 10 12 14
min 9.64 11.57 13.57
s Nominal Size 8 10 12
min 8.025 10.025 12.032
max 8.175 10.175 12.212
t min 5 6 7
w min 4 4.8 5.8
Length of Thread b 32 36 40

Thread Size
d		 M16 (M18) M20
P Pitch Coarse thread 2 2.5 2.5
Fine thread pitch-1 1.5 1.5 1.5
Fine thread pitch-2 - 2 2
dk plain head max 24 27 30
knurled heads max 24.33 27.33 30.33
min 23.67 26.67 29.67
da max 17.7 20.2 22.4
ds max 16 18 20
min 15.73 17.73 19.67
e min 16 16 19.44
k max 16 18 20
min 15.57 17.57 19.48
s Nominal Size 14 14 17
min 14.032 14.032 17.05
max 14.212 14.212 17.23
t min 8 9 10
w min 6.8 7.8 8.6
Length of Thread b 44 48 52

Thread Size
d		 (M22) M24 (M27)
P Pitch Coarse thread 2.5 3 3
Fine thread pitch-1 1.5 2 2
Fine thread pitch-2 2 - -
dk plain head max 33 36 40
knurled heads max 33.39 36.39 40.39
min 32.61 35.61 39.61
da max 24.4 26.4 30.4
ds max 22 24 27
min 21.67 23.67 26.67
e min 19.44 21.73 21.73
k max 22 24 27
min 21.48 23.48 26.48
s Nominal Size 17 19 19
min 17.05 19.065 19.065
max 17.23 19.275 19.275
t min 11 12 13.5
w min 9.4 10.4 11.9
Length of Thread b 56 60 66

Thread Size
d		 M30 (M33) M36
P Pitch Coarse thread 3.5 3.5 4
Fine thread pitch-1 2 2 3
Fine thread pitch-2 - - -
dk plain head max 45 50 54
knurled heads max 45.39 50.39 54.46
min 44.61 49.61 53.54
da max 33.4 36.4 39.4
ds max 30 33 36
min 29.67 32.61 35.61
e min 25.15 27.43 30.85
k max 30 33 36
min 29.48 32.38 35.38
s Nominal Size 22 24 27
min 22.065 24.065 27.065
max 22.275 24.275 27.275
t min 15.5 18 19
w min 13.1 13.5 15.3
Length of Thread b 72 78 96

Thread Size
d		 M42 M48 M56
P Pitch Coarse thread 4.5 5 5.5
Fine thread pitch-1 3 3 4
Fine thread pitch-2 - - -
dk plain head max 63 72 84
knurled heads max 63.46 72.46 84.54
min 62.54 71.54 83.46
da max 45.5 52.6 63
ds max 42 48 56
min 41.61 47.61 55.54
e min 36.57 41.13 46.83
k max 42 48 56
min 41.38 47.38 55.26
s Nominal Size 32 36 41
min 32.08 36.08 41.08
max 32.33 36.33 41.33
t min 24 28 34
w min 16.3 17.5 19
Length of Thread b 96 108 124

Thread Size
d		 M64 M72 M80
P Pitch Coarse thread 6 6 6
Fine thread pitch-1 4 4 4
Fine thread pitch-2 - - -
dk plain head max 96 108 120
knurled heads max 96.54 108.54 120.54
min 95.46 107.46 119.46
da max 71 79 87
ds max 64 72 80
min 63.54 71.54 79.54
e min 52.53 62.81 74.21
k max 64 72 80
min 63.26 71.26 79.26
s Nominal Size 46 55 65
min 46.08 55.1 65.1
max 46.33 55.4 65.4
t min 38 43 48
w min 22 25 27
Length of Thread b 140 156 172

Thread Size
d		 M90 M100
P Pitch Coarse thread 6 6
Fine thread pitch-1 4 4
Fine thread pitch-2 - -
dk plain head max 135 150
knurled heads max 135.63 150.63
min 134.37 149.37
da max 97 107
ds max 90 100
min 89.46 99.46
e min 85.61 97.04
k max 90 100
min 89.13 99.13
s Nominal Size 75 85
min 75.1 85.12
max 75.4 85.47
t min 54 60
w min 32 34
Length of Thread b 192 212



All information is strictly informative