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(Non-preferred) dimensions in parentheses.

Hexagon Head Thread Rolling Screws, Grade A And B

DIN 7500 (DE) - 2007

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德标DIN 7500 (DE) - 2007 DIN7500 7500DIN Hexagon Head Thread Rolling Screws, Grade A And B
Screw Thread
d
M2 M2.5 M3 (M3.5) M4 M5 M6 M8 M10 M12
P Pitch
e Grade A min
Grade B min
k Grade A max
min
Grade B max
min
s max=nominal size
Grade A min
Grade B min
0.40 0.45 0.50 0.6 0.70 0.80 1 1.25 1.50 1.75
4.32 5.45 6.01 6.58 7.66 8.79 11.05 14.38 17.77 20.03
4.18 5.31 5.88 6.44 7.5 8.63 10.89 14.2 17.59 19.85
1.525 1.825 2.125 2.525 2.925 3.65 4.15 5.45 6.58 7.68
1.275 1.575 1.875 2.275 2.675 3.35 3.85 5.15 6.22 7.32
1.6 1.9 2.2 2.6 3 3.74 4.24 5.54 6.69 7.79
1.2 1.5 1.8 2.2 2.6 3.26 3.76 5.06 6.11 7.21
4 5 5.5 6 7 8 10 13 16 18
3.82 4.82 5.32 5.82 6.78 7.78 9.78 12.73 15.73 17.73
3.7 4.7 5.2 5.7 6.64 7.64 9.64 12.57 15.57 17.57
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