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Hexagon Flange Bolts - Reduced Shank - Product Grade B

GB /T 5788 - 1986

Display drawing:

Screw Thread M6 M8 M10 M12 M14 M5 M16
D 6 8 10 12 14 5 16
P 1 1.25 1.5 1.75 2 0.8 2
B L≤125 18 22 26 30 34 16 38
B 125<L≤200 None 28 32 36 40 None 44
B L>200 None None None None None None 57
C Min 1.1 1.2 1.5 1.8 2.1 1 2.4
Da Foam A Max 6.8 9.2 11.2 13.7 15.7 5.7 17.7
Da Foam B Max 7.4 10 12.6 15.2 17.7 6.2 20.7
Dc Max 13.6 17 20.8 24.7 28.6 11.4 32.8
Ds Max 6 8 10 12 14 5 16
Ds Min 5.82 7.78 9.78 11.73 13.73 4.82 15.73
Du Max 6.6 9 11 13.5 15.5 5.5 17.5
Dw Min 11.6 14.9 18.7 22.6 26.4 9.4 30.6
E Min 8.56 10.8 14.08 16.32 19.68 7.44 22.94
F Max 2 2 2 3 3 1.4 3
K Max 6.8 8.5 9.7 11.9 12.9 5.6 15.1
K1 Min 2.9 3.8 4.3 5.4 5.6 2.3 6.7
R1 Min 0.25 0.4 0.4 0.6 0.6 0.2 0.6
R2 Max 0.4 0.5 0.6 0.7 0.9 0.3 1
R3 Min 0.1 0.15 0.2 0.25 0.3 0.1 0.35
R4 3.4 4.3 4.3 6.4 6.4 3 6.4
S Max 8 10 13 15 18 7 21
S Min 7.64 9.64 12.57 14.57 17.57 6.64 20.48
T Max 0.2 0.25 0.3 0.35 0.45 0.15 0.5
T Min 0.05 0.1 0.15 0.15 0.2 0.05 0.25