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Hexagon Washer Head Drilling Screws

JIS B 1124 (T1) - 2003

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日标JIS B1124 (T1) - 2003 JIS1124 1124JIS Hexagon Washer Head Drilling Screws

 *Models with different eras.

Nominal Length L Tips:seclect Nominal Length L and get .
Nominal Diameter
d
ST2.9 ST3.5 ST4.2 ST4.8 ST5.5 ST6.3 5 6
P Pitch
a max
dc max
min
c min
s max=nominal size
min
e min
k max=nominal size
min
kw min
r1 max
r2 max
Drilling range(thickness)
1.1 1.3 1.4 1.6 1.8 1.8 1.6 1.8
1.1 1.3 1.4 1.6 1.8 1.8 1.6 1.8
6.3 8.3 8.8 10.5 11 13.5 11 13.5
5.8 7.6 8.1 9.8 10 12.2 10 12.2
0.4 0.6 0.8 0.9 1 1 1.0 1.0
4 5.5 7 8 8 10 8 10
3.82 5.32 6.78 7.78 7.78 9.78 7.78 9.78
4.28 5.96 7.59 8.71 8.71 10.95 8.71 10.95
2.8 3.4 4.1 4.3 5.4 5.9 5.4 6.6
2.5 3 3.6 3.8 4.8 5.3 4.8 6.0
1.3 1.5 1.8 2.2 2.7 3.1 2.7 3.1
0.4 0.5 0.6 0.7 0.8 0.9 0.8 0.9
0.2 0.25 0.3 0.3 0.4 0.5 0.4 0.5
0.7 0.7 1.75 1.75 1.75 2 1.75 2
1.9 2.25 3 4.4 5.25 6 4.4 6
Lg min.
- - - - - - - -
①,The function of drilling point (dp) is specified in JIS B 1059.