GB /T 15856.4 - 2002 Hexagon Flange Head Drilling Screw With Tapping Screw Thread


Unit: mm
国标GB /T15856.4 - 2002 GB15856.4 15856.4G Hexagon Flange Head Drilling Screw With Tapping Screw Thread
Nominal Length L Tips:seclect Nominal Length L and get Weight .
Screw Thread
d
ST2.9 ST3.5 ST4.2 ST4.8 ST5.5 ST6.3
P Pitch
a max
dc max
min
c min
s max=nominal size
min
e min
k max=nominal size
min
kw min
r max
Drilling range(thickness)
1.1 1.3 1.4 1.6 1.8 1.8
1.1 1.3 1.4 1.6 1.8 1.8
6.3 8.3 8.8 10.5 11 13.5
5.8 7.6 8.1 9.8 10 12.2
0.4 0.6 0.8 0.9 1 1
4 5.5 7 8 8 10
3.82 5.32 6.78 7.78 7.78 9.78
4.28 5.96 7.59 8.71 8.71 10.95
2.8 3.4 4.1 4.3 5.4 5.9
2.5 3 3.6 3.8 4.8 5.3
1.3 1.5 1.8 2.2 2.7 3.1
0.4 0.5 0.6 0.7 0.8 0.9
0.7 0.7 1.75 1.75 1.75 2
1.9 2.25 3 4.4 5.25 6
Lg (min)
- - - - - -
Weight of per 1000 steel products(≈kg)
- - - - - -
①,The function of the drill tip (diameter dp) is specified in GB/T 3098.11.
Alternative history
Similar Standards
1 六角法兰面自钻自攻螺钉 [GB]
GB /T 15856.4 - 1995
Hexagon flange drilling screw with tapping screw thread