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DIN 7500 (QE) - 2009 Hexalobular Socket Raised Countersunk Head Thread Rolling Screws

Message Error Correction 中文版

Unit: 毫米(mm)
L
Thread Size
d
M2 M2.5 M3
P Pitch
b min
dk max=nominal size
min
f ≈
k max=nominal size
Socket No.
A
t max
min
0.4 0.45 0.5
25 25 25
3.8 4.7 5.5
3.5 4.4 5.2
0.5 0.6 0.7
1.2 1.5 1.65
T6 T8 T10
1.75 2.4 2.8
0.77 1.04 1.15
0.63 0.91 0.88
per 1000 units ≈ kg(7.85kg/cm3)
- - -
①,Material: The self-tapping screws must be made from cold extrusion steels. The core hardness must be 290 HV10 to 370 HV10. The surface hardness must be at least 450 HV0.3 after the heat treatment.

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