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Hexagon Flange Bolts - Reduced Shank - Product Grade B

GB /T 5788 - 1986

Display drawing:

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