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Hexagon Flange Bolts

DIN 6921 - 1983

Display drawing:

Screw Thread M1 M12 M5 M6 M8 M14 M20 M16
D 1 12 5 6 8 14 20 16
P Coarse Thread 1.5 1.75 0.8 1 1.25 2 2.5 2
P Fine Thread-1 1.25 1.5 None None 1 1.5 1.5 1.5
P Fine Thread-2 1 1.25 None None None None None None
B L≤125 26 30 16 18 22 34 46 38
B 125＜L≤200 32 36 None None 28 40 52 44
B L＞200 None None None None None None 65 57
C Min 1.5 1.8 1 1.1 1.2 2.1 3 2.4
Da Foam A Max 11.2 13.7 5.7 6.8 9.2 15.7 22.4 17.7
Da Foam B Max 12.6 15.2 6.2 7.4 10 17.7 25.7 20.7
Dc Max 22.3 26.6 11.8 14.2 18 30.5 43 35
Ds Max 10 12 5 6 8 14 20 16
Ds Min 9.78 11.73 4.82 5.82 7.78 13.73 19.67 15.73
Du Max 11 13.5 5.5 6.6 9 15.5 22 17.5
Dw Min 19.6 23.8 9.8 12.2 15.8 27.6 39.9 31.9
E Min 16.5 17.62 8.71 10.95 14.26 19.86 29.87 23.15
F Max 2 3 1.4 2 2 3 4 3
K Max 9.2 11.5 5.4 6.6 8.1 12.8 17.1 14.4
K1 Min 3.6 4.6 2 2.5 3.2 5.1 6.8 5.8
R1 Min 0.4 0.6 0.25 0.4 0.4 0.6 0.8 0.6
R2 Max 0.6 0.7 0.3 0.4 0.5 0.9 1.2 1
R3 Min 0.2 0.25 0.1 0.1 0.15 0.3 0.4 0.35
R4 4.3 6.4 3 3.4 4.3 6.4 8.5 6.4
S Max 15 16 8 10 13 18 27 21
S Min 14.73 15.73 7.78 9.78 12.73 17.73 26.67 20.67
T Max 0.3 0.35 0.15 0.2 0.25 0.45 0.65 0.5
T Min 0.15 0.15 0.05 0.05 0.1 0.2 0.3 0.25