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  • M2
  • M2.5
  • M3
  • (M3.5)
  • M4
  • M5
  • M6
  • M8
  • M10

18

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  • 4
  • 5
  • 6
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  • 10
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ISO 14581 - 2013 Fasteners — Hexalobular Socket Countersunk Flat Head Screws
Thread Specifications
d
M2
P Pitch
dk theoretical max
actual max=nominal size
min
k max
x max
Socket No.
A Ref.
t max
min
0.4
4.4
3.8
3.5
1.2
1
T6
1.75
0.64
0.51
thousand-piece steel weight≈kg
0.101
Thread Lengthb
Full thread