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Examples of application: single – truss profile
Fb 6/Fb 6 R
Fb 4/Fb 4 R
Examples of application:
double-walled profile
FbM 4/FbM 4 R
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Window drilling screw with metric threads
Metal core fixture, double-walled profiles
Metric window drilling screw with the drill bit designed for fixing metal cores or other fittings in thick-walled and
muti-walled PVC profiles with steel /aluminum reinforcements with thicknesses ranging from 1.5 to 3.5 mm
FBM 4 Seko:
g With metric thread and drill bit
90° countersunk head, automatic
screwing, speed approx. 1,500 –
1,800 rpm
FBM 4 R Seko:
g Additional ribs/facets make it easier
to countersink the screw head
High retention force, no over screwing,
90° – countersunk, automatic screwing,
speed approx. 1,500 – 1,800 rpm
2.5 mm thick or double-walled profiles are used as reinforcement
Type Dimensions Max. usable Drilling capacity/
length of threads max. thickness of the material
FBM 4 Seko
FBM 4 R Seko:
FBM 4 PH
Window drilling screw
Metal core fixture, single-truss profiles
to fix metal cores or other fittings in PVC profiles with inserted bars and reinforcements made of steel /aluminimum
with thicknesses measuring up to 2.5 mm
FB 4 Seko/FB 6 Seko:
g With the unthreaded drill bit
6 or 4 mm in length
90° – countersunk head,
automatic screwing, speed approx.
1,500 – 1,800 rpm
4,0
7,5 3,9
4,0
7,5 M4
FB 4 R Seko/FB 6 R Seko:
g Additional ribs make it easier to
countersink the screw head into
plastic materials
High retention force, no over-screwing,
90° – countersunk head, automatic
screwing, speed approx. 1,500 –
1,800 rpm
7,5 3,9
Type Dimensions Max. usable Drilling capacity/
length of threads max. thickness of the material
FB 4 Seko
FB 4 R Seko
FB 4 PH
FB 6 Seko
FB 6 R Seko
FB 6 PH
3.9 x 13 7 2.0
3.9 x 16 10 2.5
3.9 x 19 13 2.5
3.9 x 22 16 2.5
3.9 x 25 19 2.5
3.9 x 32 26 2.5
3.9 x 16 8 2.0
3.9 x 19 11 2.5
3.9 x 22 14 2.5
3.9 x 25 17 2.5
3.9 x 32 24 2.5
3.9 x 38 30 2.5
7,5 M4
3.9 x 13 8 2.0
3.9 x 16 9 2.5
3.9 x 19 12 2.5
3.9 x 22 15 2.5
3.9 x 25 18 2.5
3.9 x 32 25 2.5
3.9 x 38 31 2.5
4,0
4,0
FB 4 Pan head/FB 6 Pan head:
g With the unthreaded drill bit 6
or 4 mm in length
Pan head, automatic screwing,
speed approx. 1,500 – 1,800 rpm
g High extraction forces required
7,5 3,9
t05200
FBM 4 Pan head:
g With metric thread and drill bit
Pan head, automatic screwing,
speed approx. 1,500 – 1,800 rpm
8,0 M4
t/05205
4,0
4,0
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