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GB /T 6562 - 1986 Cross Recessed Raised Countersunk Head Thread Forming Screws

Weight Calculator Message Error Correction 中文版

Unit: 毫米(mm)
Weight Calculator
L
Thread Size
d
M2.5 M3 M4
P Pitch
a max
b min
dk Theoretical max
Actual max
min
f ≈
k max
r max
R ≈
x max
Socket No.
m Ref.
Penetration depth max
min
0.45 0.5 0.7
0.9 1 1.4
12 18 24
5.5 6.3 9.4
4.7 5.5 8.4
4.4 5.2 8
0.6 0.7 1
1.5 1.65 2.7
0.6 0.8 1
5 6 9.5
1.1 1.25 1.75
1 1 2
3 3.4 5.2
1.85 2.2 3.2
1.5 1.8 2.7
per 1000 units ≈ kg(7.85kg/cm3)
- - -
Thread Length
b
- - -
Alternative history GB /T 6562 - 1986 GB /T 6562 - 2014

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