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(Non-preferred) dimensions in parentheses.

Hexagon Flange Bolts - Product Grade B

GB 5787 - 1986

Display drawing:

国标GB 5787 - 1986 GB5787 5787GB Hexagon  Flange Bolts - Product Grade B
Nominal Length L Tips:seclect Nominal Length L and get Thread length.
Screw Thread
d
M5 M6 M8 M10 M12 (M14) M16
P Pitch
b L≤125
125<L≤200
L>200
c min
da Type A max
Type B max
dc max
ds max
min
du max
dw min
e min
f max
k max
k1 min
r1 min
r2 max
r3 min
r4 Ref.
s max
min
t max
min
0.8 1 1.25 1.5 1.75 2 2
16 18 22 26 30 34 38
- - 28 32 36 40 44
- - - - - 53 57
1 1.1 1.2 1.5 1.8 2.1 2.4
5.7 6.8 9.2 11.2 13.7 15.7 17.7
6.2 7.4 10 12.6 15.2 17.7 20.7
11.4 13.6 17 20.8 24.7 28.6 32.8
5 6 8 10 12 14 16
4.82 5.82 7.78 9.78 11.73 13.73 15.73
5.5 6.6 9 11 13.5 15.5 17.5
9.4 11.6 14.9 18.7 22.6 26.4 30.6
7.44 8.56 10.8 14.08 16.32 19.68 22.94
1.4 2 2 2 3 3 3
5.6 6.8 8.5 9.7 11.9 12.9 15.1
2.3 2.9 3.8 4.3 5.4 5.6 6.7
0.2 0.25 0.4 0.4 0.6 0.6 0.6
0.3 0.4 0.5 0.6 0.7 0.9 1
0.1 0.1 0.15 0.2 0.25 0.3 0.35
3 3.4 4.3 4.3 6.4 6.4 6.4
7 8 10 13 15 18 21
6.64 7.64 9.64 12.57 14.57 17.57 20.48
0.15 0.2 0.25 0.3 0.35 0.45 0.5
0.05 0.05 0.1 0.15 0.15 0.2 0.25
Length of Thread b
- - - - - - -
①,P = pitch of coarse thread.

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