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Hexagon head bolts grades A and B partially threaded

DIN 931-1 - 1987

Display drawing:

 *Models with different eras.

Nominal Length L Tips:seclect Nominal Length L and get Thread length.
Thread Size
d
M1.6 M2 M2.5 M3 (M3.5) M4 M5 M6 (M7) M8 M10 M12
P Thread Pitch
b Ref. L≤125
125<L≤200
L>200
c min
max
da max
ds max=nominal size
min Grade A
Grade B
dw min Grade A
Grade B
e min Grade A
Grade B
k Nominal Size
Grade A min
max
Grade B min
max
k1 min
r min
s max=nominal size
min Grade A
Grade B
0.35 0.4 0.45 0.5 0.6 0.7 0.8 1 1 1.25 1.5 1.75
9 10 11 12 13 14 16 18 20 22 26 30
- - - - - - 22 24 26 28 32 36
- - - - - - - - - - 45 49
0.1 0.1 0.1 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15
0.25 0.25 0.25 0.4 0.4 0.4 0.5 0.5 0.5 0.6 0.6 0.6
2 2.6 3.1 3.6 4.1 4.7 5.7 6.8 7.8 9.2 11.2 13.7
1.6 2 2.5 3 3.5 4 5 6 7 8 10 12
1.46 1.86 2.36 2.86 3.32 3.82 4.82 5.82 6.78 7.78 9.78 11.73
- - - - - - - - - - - -
2.4 3.2 4.1 4.6 5.1 5.9 6.9 8.9 9.8 11.6 15.6 17.4
- - - - - - - - - - - -
3.41 4.32 5.45 6.01 6.58 7.66 8.79 11.05 12.12 14.38 18.9 21.1
- - - - - - - - - - - -
1.1 1.4 1.7 2 2.4 2.8 3.5 4 4.8 5.3 6.4 7.5
0.98 1.28 1.58 1.88 2.28 2.68 3.35 3.85 4.65 5.15 6.22 7.32
1.22 1.52 1.82 2.12 2.52 2.92 3.65 4.15 4.95 5.45 6.58 7.68
- - - - - - - - - - - -
- - - - - - - - - - - -
0.7 0.9 1.1 1.3 1.6 1.9 2.28 2.63 3.19 3.54 4.28 5.05
0.1 0.1 0.1 0.1 0.1 0.2 0.2 0.25 0.25 0.4 0.4 0.6
3.2 4 5 5.5 6 7 8 10 11 13 17 19
3.02 3.82 4.82 5.32 5.82 6.78 7.78 9.78 10.73 12.73 16.73 18.67
- - - - - - - - - - - -
Length of Thread b
- - - - - - - - - - - -
Thread Size
d
(M14) M16 (M18) M20 (M22) M24 (M27) M30 (M33) M36 (M39)
P Thread Pitch
b Ref. L≤125
125<L≤200
L>200
c min
max
da max
ds max=nominal size
min Grade A
Grade B
dw min Grade A
Grade B
e min Grade A
Grade B
k Nominal Size
Grade A min
max
Grade B min
max
k1 min
r min
s max=nominal size
min Grade A
Grade B
2 2 2.5 2.5 2.5 3 3 3.5 3.5 4 4
34 38 42 46 50 54 60 66 72 78 84
40 44 48 52 56 60 66 72 78 84 90
53 57 61 65 69 73 79 85 91 97 103
0.15 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3
0.6 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 1
15.7 17.7 20.2 22.4 24.4 26.4 30.4 33.4 36.4 39.4 42.4
14 16 18 20 22 24 27 30 33 36 39
13.73 15.73 17.73 19.67 21.67 23.67 - - - - -
- 15.57 17.57 19.48 21.48 23.48 26.48 29.48 32.38 35.38 38.38
20.5 22.5 25.3 28.2 30 33.6 - - - - -
- 22 24.8 27.7 29.5 33.2 38 42.7 46.6 51.1 55.9
24.49 26.75 30.14 33.53 35.72 39.98 - - - - -
- 26.17 29.56 32.95 35.03 39.55 45.2 50.85 55.37 60.79 66.44
8.8 10 11.5 12.5 14 15 17 18.7 21 22.5 25
8.62 9.82 11.28 12.28 13.78 14.78 - - - - -
8.98 10.18 11.72 12.72 14.22 15.22 - - - - -
- 9.71 11.15 12.15 13.65 14.65 16.65 18.28 20.58 22.08 24.58
- 10.29 11.85 12.85 14.35 15.35 17.35 19.12 21.42 22.92 25.42
5.96 6.8 7.8 8.5 9.6 10.3 11.7 12.8 14.4 15.5 17.2
0.6 0.6 0.6 0.8 0.8 0.8 1 1 1 1 1
22 24 27 30 32 36 41 46 50 55 60
21.67 23.67 26.67 29.67 31.61 35.38 - - - - -
- 23.16 26.16 29.16 31 35 40 45 49 53.8 58.8
Length of Thread b
- - - - - - - - - - -
①,Material:
a)Steel, Property class: 5.6,8.8,10.9 according to DIN ISO 898-1
b)Stainless steel, Property class: ≤M20: A2-70,A4-70;> M20: A2-50, A4-50;C3,C4 according to DIN 267-11
c)Non-ferrous metal accroding to DIN 267-18

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  • Material: carbon steel, stainless steel; Grade: 4.8, 8.8, 10.9, 12.9; Surface treatment: according to customer requirements; Complete specifications, non-standard customization.

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