International Catalogue

Concrete screw FBS
High performance steel anchors
TECHNICAL DATA
zinc-plated
steel
stainless
steel
Concrete screw FBS-US with hexagon head
and forged washer
Concrete screw FBS-S with hexagon head
Approval
Drill hole diameter
Min. drill-hole
depth for through
fixings
Screw length
Max. fixture
thickness
Actuation
ETA d o h 2 l s t fi x
Art.-No. Art.-No. [mm] [mm] [mm] [mm] [pcs]
Item gvz A4
FBS 8/5 US 066956 — ■ 8 90 80 5 T40/SW13 100
FBS 8/25 US 066957 — ■ 8 110 100 25 T40/SW13 100
FBS 8/15 S 066958 — ■ 8 100 90 15 SW 16 100
FBS 10/5 S 067062 — ■ 10 100 90 5 SW 18 50
FBS 10/15 S 067063 — ■ 10 110 100 15 SW 18 50
FBS 10/15 S — 047465 — 10 110 100 15 SW 17 50
FBS 10/25 S 067168 — ■ 10 120 110 25 SW 18 50
Sales unit
INSTALLATION OF CONCRETE SCREWS
Concrete screw
recommended nominal torque
of the tangential impact wrench* )
maximum tightening torque
with torque wrench resp. ratch ≦
[Nm]
[Nm]
FBS 8 200 40
FBS 10 300 40
* ) Use nuts (black) which fit percussion power screwdrivers!
The conversion of nominal output into effective tightening torque varies from machine to machine - always therefore use torque control.
LOADS
Concrete screw FBS
Highest permissible loads for a single anchor 1) in concrete C20/25 4)
For the design the complete approval ETA - 11/0095 has to be considered.
Type
Cracked concrete
Non-cracked concrete
Effective Min. Installation Permissible Permissible Min. Min. Permissible Permissible Min. Min.
anchorage member torque tensile load shear load spacing edge tensile load shear load spacing edge
depth thickness
distance
distance
h ef h min T inst
3)
N perm
3)
V perm
2)
s min
2)
c min
3)
N perm
3)
V perm
2)
s min
2)
c min
[mm] [mm] [Nm] [kN] [kN] [mm] [mm] [kN] [kN] [mm] [mm]
FBS 8 51 120 - 4,3 6,2 50 50 5,7 8,6 50 50
FBS 10 68 130 - 7,6 16,2 70 70 13,5 16,2 70 70
1)
The partial safety factors for material resistance as regulated in the approval as well as a partial
safety factor for load actions of L = 1,4 are considered. As an single anchor counts e.g. an anchor
with a spacing s ≥ 3 x h ef and an edge distance c ≥ 1,5 x h ef . Accurate data see approval.
2)
Minimum possible axial spacings resp. edge distance while reducing the permissible load.
3)
For combinations of tensile loads, shear loads, bending moments as well as reduced edge
distances or spacings (anchor groups) see approval.
4)
For higher concrete strength classes up to C50/60 higher permissible loads may be possible.
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