GB /T 16939 - 2016High Strength Bolts For Joints Of Space Grid Structures

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GB /T 16939 - 2016

Unit: mm

GB /T 16939 - 2016 High Strength Bolts For Joints Of Space Grid Structures

Unit: mm

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GBT16939@simple_M12X50

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GBT16939_M12X50

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GB /T 16939 - 2016 High Strength Bolts For Joints Of Space Grid Structures

Thread Size
d

M12

P	Pitch
b	min
b	max
d_k	max
d_k	min
d_s	max
d_s	min
k	Nominal Size
	max
	min
L	Nominal Size
	max
	min
L₁	Nominal Size
	max
	min
L₂	≈
L₃
n	max
n	min
t₁	max
t₁	min
t₂	max
t₂	min
c	≈
r	min
per 1000 units ≈ kg

1.75
15
18.5
18
17.38
12.35
11.65
6.4
7.15
5.65
50
50.8
49.2
18
18.35
17.65
10
4
3.3
3
2.8
2.2
2.3
1.7
1.5
0.8
51.39