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GB /T 9125.2 - 2020 Hex Bolt For Pipe Flange Connection - Class designated


Unit: 毫米(mm)
Weight Calculator
Thread Size
d
M14 M16 M20
P Pitch
b L≤125
125<L≤200
L>200
c max
min
da max
ds max=nominal size
Grade A min
Grade B min
dw Grade A min
Grade B min
e Grade A min
Grade B min
L1 max
k Nominal Size
Grade A max
min
Grade B max
min
k1 Grade A min
Grade B min
r min
s max=nominal size
Grade A min
Grade B min
2 2 2.5
34 38 46
40 44 52
53 57 65
0.6 0.8 0.8
0.15 0.2 0.2
15.7 17.7 22.4
14 16 20
13.73 15.73 19.67
13.57 15.57 19.48
19.64 22.49 28.19
19.15 22 27.7
23.36 26.75 33.53
22.78 26.17 32.95
3 3 4
8.8 10 12.5
8.98 10.18 12.715
8.62 9.82 12.285
9.09 10.29 12.85
8.51 9.71 12.15
6.03 6.87 8.6
5.96 6.8 8.51
0.6 0.6 0.8
21 24 30
20.67 23.67 29.67
20.16 23.16 29.16
Alternative history GB /T 9125 - 2003 GB /T 9125 - 2010 GB 9125.1 - 2020

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