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Concrete screw with countersunk head W-BS/S
Concrete screw with countersunk head W-BS/S - 1
Concrete screw with countersunk head W-BS/S - 2
Concrete screw with countersunk head W-BS/S - 3
Concrete screw with countersunk head W-BS/S - 4
Concrete screw with countersunk head W-BS/S - 5

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Concrete screw with countersunk head W-BS/S

Highest load capacities and efficient mounting. For flush-mount mounting of e.g. railings or handrails in concrete, zinc-plated steel

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Available in 13 versions

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  • Extremely flexible to use due to three anchoring depths (size 6-10)

  • Fastening can be adjusted up to twice after installation (size 6-10), for example in order to align railings or anchor plates (please refer to the assembly guide)

  • Very high loads

  • Smallest axial and edge clearance due to very low expansion effect

  • Very fast and easy assembly and immediately load-bearing

  • Attractive, flush-mount installation possible
Notice

From size 8, we recommend the use of a suitable tangential impact screwdriver for installation. The recommended maximum rated torque must be observed.

European Technical Assessment ETA-16/0043 for fixing point, option 1, cracked and non-cracked concrete:


  • Static and quasi-static effects (∅6 - ∅10)

  • Seismic effect, performance category C1 (∅6 - ∅10) and C2 (∅8 - ∅10)

  • Fire resistance R30, R60, R90, R120


European Technical Assessment ETA-16/0128 for anchors in a redundant non-structural system:


  • Cracked and non-cracked concrete, (∅5 and ∅6)

  • Hollow-core prestressed concrete ceilings C30/37 - C50/60, (∅6)

  • Fire resistance R30, R60, R90, R120


DIBt National technical approval/general type approval Z-21.1-2075 as bonded screw anchor for anchoring in concrete (∅10 ), type SK countersunk head


  • Use in combination with injectable mortar WIT-BS as bonded screw anchor WIT-BS

  • In reinforced and non-reinforced and cracked and non-cracked concrete C20/25 to C50/60


Fire resistance rating when exposed to fire according to the uniform temperature time curve in masonry (Mz, KSL, KS), and reinforced concrete, (∅5 and ∅6) - expert report no 2101/173/18 - 2018