GB /T 70.3 - 2008Hexagon Socket Countersunk Head Screws

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(Non-preferred) dimensions in parentheses.

GB /T 70.3 - 2008

Unit: mm

GB /T 70.3 - 2008 Hexagon Socket Countersunk Head Screws

Unit: mm

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GBT70.3@simple_M3X8

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GBT70.3_M3X8

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GB /T 70.3 - 2008 Hexagon Socket Countersunk Head Screws

Thread Size
d

M3

P		Pitch
d_k ^③		Theoretical	max
		Actual	min
d_s		max
		min
e ^①		min
k		max
s ^①		Nominal Size
		max
		min
t		min
Minimum tensile load(N) ^②		8.8
		10.9
		12.9

0.5
6.72
5.54
3
2.86
2.303
1.86
2
2.080
2.020
1.1
3220
4180
4910

thousand-piece steel weight≈kg

-

Thread Lengthb

Full thread