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JIS B 1124 (F4) - 2021 Cross recessed raised countersunk head drilling screws

Weight Calculator Message Error Correction 中文版

Unit: 毫米(mm)
Weight Calculator
L
Thread Size
d
ST2.9 ST3.5 ST4.2
P Pitch
a max
dk Theoretical max
Actual max
min
f ≈
k max
r max
R ≈
Socket No.
M1 Type H Ref.
Penetration depth Type H max
min
M2 Type Z Ref.
Penetration depth Type Z max
Type Z min
Drilling range(thickness) ≥
≤
1.1 1.3 1.4
1.1 1.3 1.4
6.3 8.2 9.4
5.5 7.3 8.4
5.2 6.9 8.0
0.7 0.8 1.0
1.7 2.35 2.6
1.2 1.4 1.6
6 8.5 9.5
1 2 2
3.4 4.8 5.2
2.2 2.75 3.2
1.8 2.25 2.7
3.3 4.8 5.2
2.1 2.70 3.10
1.8 2.25 2.65
0.7 0.7 1.75
1.9 2.25 3
Lg min.
- - -
①,The function of drilling point (dp) is specified in JIS B 1059.
Alternative history JIS B 1124T4 - 2003 JIS B 1124F4 - 2021

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