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Unit:mm

Large Hexagon Nuts with Hole

GB /T 16939 - 1997

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国标GB /T16939 - 1997 GB16939 16939GB Large Hexagon Nuts with Hole
Screw Thread
d
M12 M14 M16 M20 M22 M24 M27 M30 M33
P Pitch
D
d0
s
e min
k
L1
1.75 2 2 2.5 2.5 3 3 3.5 3.5
13 15 17 21 23 25 28 31 34
M5 M5 M5 M6 M6 M6 M8 M8 M8
21 24 27 34 36 41 46 50 55
22.78 26.17 29.56 37.29 39.55 45.2 50.85 55.37 60.79
25 27 30 35 35 40 40 45 45
8 8 10 10 10 10 10 10 10
Screw Thread
d
M36 M39 M42 M45 M48 M52 M56 M60 M64
P Pitch
D
d0
s
e min
k
L1
4 4 4.5 4.5 5 5 4 4 4
37 40 43 46 49 53 57 61 65
M10 M10 M10 M10 M10 M10 M10 M10 M10
60 65 70 75 80 85 90 95 100
66.44 72.02 76.95 82.6 88.25 93.56 99.21 104.86 110.51
55 55 60 60 60 70 70 90 90
15 15 15 15 15 15 15 15 15

Alternative history

GB /T 16939 - 1997 GB /T 16939 - 2016
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