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Hex Bolt For Pipe Flange Connection

GB /T 9125 - 2010

Display drawing:

 *Models with different eras.

Thread Size
d
M10 M12 M14 M16 M20 M24 M27 M30 M33 M36 M39
P Pitch
b L≤125
125<L≤200
L>200
ds max=nominal size
min Grade A
Grade B
e min Grade A
Grade B
k Nominal Size
Grade A max
min
Grade B max
min
s max=nominal size
min Grade A
Grade B
r min
1.5 1.75 2 2 2.5 3 3 3.5 3.5 4 4
26 30 34 38 46 54 60 66 / / /
32 36 40 44 52 60 66 72 78 84 90
45 49 53 57 65 73 79 85 91 97 103
10 12 14 16 20 24 27 30 33 36 39
9.78 11.73 13.73 15.73 19.67 23.67 / / / / /
9.64 11.57 13.57 15.57 19.48 23.48 26.48 29.48 32.38 35.38 38.38
17.77 20.03 23.36 26.75 33.53 39.98 / / / / /
17.59 19.85 22.78 26.17 32.95 39.55 45.2 50.85 55.37 60.79 66.44
6.4 7.5 8.8 10 12.5 15 17 18.7 21 22.5 25
6.58 7.68 8.98 10.18 12.715 15.215 / / / / /
6.22 7.32 8.62 9.82 12.285 14.785 / / / / /
6.69 7.79 9.09 10.29 12.85 15.35 17.35 19.12 21.42 22.92 25.42
6.11 7.21 8.51 9.71 12.15 14.65 16.65 18.28 20.58 22.08 24.58
16 18 21 24 30 36 41 46 50 55 60
15.73 17.73 20.67 23.67 29.67 35.38 / / / / /
15.57 17.57 20.16 23.16 29.16 35 40 45 49 53.8 58.8
0.4 0.6 0.6 0.6 0.8 0.8 1 1 1 1 1

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