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Unit:mm

Large Hexagon Nut for Pipe Flange Connection

GB /T 9125 - 2010

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国标GB /T9125 - 2010 GB9125 9125GB Large Hexagon Nut for Pipe Flange Connection
Download CAD Model*
Download CAD Model*

 *Models with different eras.

Thread Size
D
M12 (M14) M16 M20 M24 (M27) M30 (M33) M36 (M39)
P Coarse thread
Fine thread
da max
min
dw min
e min
m max
min
mw min
c max
min
s max
min
1.75 2 2 2.5 3 3 3.5 3.5 / /
/ / / / / / / / 3 3
13 15.1 17.3 21.6 25.9 29.1 32.4 35.6 38.9 42.1
12 14 16 20 24 27 30 33 36 39
19.2 21.1 24.9 31.4 38 42.8 46.5 50.8 55.8 60.1
22.78 25.94 29.56 37.29 45.2 50.85 55.37 60.26 65.86 70.67
12.3 14.3 17.1 20.7 24.2 27.6 30.7 33.5 36.5 39.5
11.87 13.6 16.4 19.4 22.9 26.3 29.1 31.9 34.9 37.9
8.3 9.5 11.5 13.6 16 18.4 20.4 22.3 24.4 26.5
0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8
0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4
21 24 27 34 41 46 50 55 60 65
20.16 23.16 26.16 33 40 45 49 53.8 58.8 63.1
Thread Size
D
M42 (M45) M48 (M52) M56 M64 M72 M76 M80 M90
P Coarse thread
Fine thread
da max
min
dw min
e min
m max
min
mw min
c max
min
s max
min
/ / / / / / / / / /
3 3 3 3 3 3 3 3 3 3
45.4 48.6 51.8 56.2 60.5 69.1 77.8 82.1 86.1 97.2
42 45 48 52 56 64 72 76 80 90
60.1 65.1 70.1 75.1 79.3 89.3 99.7 104.5 110.1 123.5
70.67 76.27 81.87 87.47 92.74 103.94 115.14 120.74 126.45 142.8
42.5 45.5 48.5 52.5 56.5 64.5 72.5 76.5 80.5 90.5
40.9 43.9 46.9 50.6 54.6 62.6 70.6 74.6 78.6 88.3
28.6 30.7 32.8 35.4 38.2 43.8 49.2 52.2 55 61.8
1 1 1 1 1 1 1.5 1.5 1.5 1.5
0.5 0.5 0.5 0.5 0.5 0.5 0.8 0.8 0.8 0.8
65 70 75 80 85 95 105 110 115 130
63.1 68.1 73.1 78.1 82.8 92.8 102.8 107.8 113.6 127.5

Alternative history

GB /T 9125 - 2003 GB /T 9125 - 2010 GB /T 9125.1 - 2020 GB /T 9125.2 - 2020
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