Concrete screw W-BS-T temporary
Concrete screw W-BS-T, temporary
CONCSCR-(W-BS-T)-(A2K)-WS15-5-10X80
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- Quick and easy installation
- Immediate load-bearing capacity
- Very secure installation
- Low material costs as re-usable
- No installation torque required
DIBt National technical approval for cracked and uncracked concrete Z-21.8-2090 for the temporary attachment of construction site equipment
The screw and the thread must be checked for visual defects with the test sleeve supplied before every reuse.
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Oblique struts in formwork construction
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Oblique struts in formwork construction
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Construction site railings
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The concrete screw should be checked for wear before every use. The concrete screw may only be re-used when more than three thread turns can be inserted into the sleeve.
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Create the drill hole
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Clean the drill hole
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Place screw
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Screw in the screw
Temporary fixings of construction site facilities, such as props, slanted props, scaffolding or fall protection such as railings
- In reinforced and non-reinforced concrete
- In cracked and uncracked concrete
- For normal weight concrete of strength classes C20/25 to C50/60
- In fresh concrete from a concrete compressive strength of fck, cube ≥ 10 N/mm²
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Anchor size | 10 mm |
Anchor length (l) | 80 mm |
Attachment height (t fix 1) | 5 mm |
Material | Steel |
Surface | Zinc plated |
External drive | WS15 |
Nominal drill-bit diameter (d 0) | 10 mm |
Drill hole depth (h 1) | 85 mm |
Type description | W-BS-T |
Attachment height (t fix 1-2-3) | 5 / - / - mm |
Anchor diameter [mm] | 10 | 12 | 14 | ||||||
Length of anchor in concrete hnom≥ [mm] | 75 | 75 | 90 | 75 | 90 | 115 | |||
Admissible centric tension load1) and admissible shear load1) of an individual anchor | Cracked and uncracked concrete compressive strength fck,cube ≥ 10 N/mm² | Fadm [kN] | 4 | 4 | 8 | 4 | 8 | 10 | 11,3 |
Cracked and uncracked concrete compressive strength fck,cube ≥ 15 N/mm² | 4,6 | 4,6 | 8,6 | 4,6 | 8,6 | 12 | 14 | ||
Cracked and uncracked concrete compressive strength fck,cube ≥ 20 N/mm² | 5,3 | 5,3 | 9,3 | 5,3 | 9,3 | 13,3 | 16 | ||
Minimum spacing | s [mm] | 320 | 320 | 390 | 320 | 390 | 500 | ||
Minimum edge distance in load direction | c1 [mm] | 105 | 105 | 130 | 105 | 130 | 165 | ||
Minimum edge distance transverse to load direction | c2 [mm] | 160 | 160 | 195 | 160 | 195 | 250 | ||
Minimum member thickness | hmin ≥ [mm] | 150 | 150 | 195 | 150 | 195 | 200 | 225 | |
Drill hole depth | h1 ≥ [mm] | 85 | 85 | 100 | 85 | 100 | 125 | ||
Through hole in the component being connected | df ≤ [mm] | 14 | 16 | 18/222) | |||||
Nominal drill diameter | d0 [mm] | 10 | 12 | 14 | |||||
Diameter of cutting edges | dcut ≤ [mm] | 10,45 | 12,5 | 14,5 | |||||
1) The partial safety factor of γF = 1.5, as regulated in the approval, is taken into account 2) df = 22 mm only applies to the 14x130 version with collar |
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