Concrete screw with hexagon head and large disc W-BS/S
Concrete screw W-BS, type S w. la. washer ST galv.
ANC-(W-BS/S)-(A2K)-WS15-235-265-10X320
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- Extremely flexible to use due to three anchoring depths
- Fastening can be adjusted up to twice after installation, for example in order to align railings or anchor plates (please refer to the assembly guide)
- Very high loads
- Smallest spacing and edge distance thanks to very low expansion effect
- Very fast and easy assembly and immediately load-bearing
European Technical Assessment ETA-16/0043 for individual fixing point, option 1, cracked and uncracked concrete:
- Static and quasi-static effects
- Seismic exposure, performance categories C1 and C2
- 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
- Use in combination with injection mortar WIT-BS as bonded screw anchor WIT-BS
- In reinforced and non-reinforced and cracked and uncracked concrete C20/25 to C50/60
From size 8, we recommend the use of a suitable tangential impact screwdriver for installation. The recommended maximum nominal torque must be observed.
Wooden structures
Adjustment - subsequent aligning possible.
Create the drill hole
Clean the drill hole
Place screw
Screw in the screw
Considered installed when the head is close fitting
Screw out the screw max. 2x each by max. 10 mm. Underlay. Screw in
Considered installed when the head is close fitting. Lining max. 10 mm. The required embedment depth must be maintained as a minimum
Locate the tensioning strand
Mark the tensioning strand and locate the next one
Mark the tensioning strands. Specify the drilling range
Create the drill hole. Observe spacing
Clean the drill hole
Screw in the screw
Considered installed when the head is close fitting. Observe the embedment depth/mirror thickness
Datasheets(X)
CAD data (available after login)
Individual fixing point with approval:
Normal weight concrete C20/25 to C50/60 (cracked and uncracked concrete)
Especially suitable for fixtures in wooden construction applications in concrete:
- Mounting of e.g. support beams, sleepers, inferior purlins, canopies, wooden substructures, etc.
- Fastenings under seismic conditions in earthquake areas
- Fastenings under exposure to fire
W-BS/S (galvanised steel) may only be used in dry indoor room conditions
For use in concrete < C20/25 and pressure-resistant natural stone (without approval)
Anchor size | 10 mm |
Anchor length (l) | 320 mm |
Attachment height (t fix 1) | 265 mm |
Attachment height (t fix 2) | 245 mm |
Attachment height (t fix 3) | 235 mm |
Thread diameter | 12 mm |
Nominal drill-bit diameter (d 0) | 10.0 mm |
Drill hole depth (h 1.1) | 65 mm |
Drill hole depth (h 1.2) | 85 mm |
Drill hole depth (h 1.3) | 95 mm |
Embedding depth (h nom1) | 55 mm |
Embedding depth (h nom2) | 75 mm |
Embedding depth (h nom3) | 85 mm |
External drive | WS15 |
Material | Steel |
Surface | Zinc plated |
Washer diameter | 44 mm |
Through-hole in the component to be connected (d f) | 14.0 mm |
Head type | Hexagon head |
Type description | W-BS type S |
| Anchor size [mm] | 10 | ||||
| Length of anchor in drilled hole | hnom [mm] | 55 | 75 | 85 | |
| Admissible centric tension load1) on an individual anchor without the influence of the edge distance | Tensile zone (cracked concrete C20/252), s ≥ 3 hef c ≥ 1.5 hef) | Nperm. [kN] = C20/252) | 4,3 | 8,0 | 9,6 |
| Compressive zone (non-cracked concrete C20/252), s ≥ 3 hef c ≥ 1.5 hef) | 5,7 | 9,5 | 11,9 | ||
| Admissible shear load1) on an individual anchor without the influence of the edge distance | Tensile zone (cracked concrete C20/252), c ≥ 10 hef) | Vperm. [kN] = C20/252) | 4,8 | 15,9 | 16,2 |
| Compressive zone (non-cracked concrete C20/252), c ≥ 10 hef) | 6,8 | 16,2 | 16,2 | ||
| 1) The partial safety factors of the resistances yM regulated in the evaluation/approval and a partial safety factor of the effects of γF = 1.4 have been taken into account. For a combination of tensile and shear loads, for the influence of the edge distance and anchor groups please see the appropriate guidelines e.g. DIN EN 1992-4. 2) The concrete has normal reinforcement. Higher values are possible for higher concrete strengths. | |||||
| Anchor size [mm] | 10 | |||
| Nominal length of thread engagement | hnom [mm] | 55 | 75 | 85 |
| Minimum axis distance | smin [mm] | 50 | ||
| Axis distance | scr,N [mm] | 129 | 180 | 204 |
| Minimum edge distance | cmin [mm] | 50 | ||
| Edge distance | ccr,N [mm] | 64,5 | 90 | 102 |
| Minimum member thickness | hmin [mm] | 80 | 90 | 102 |
| Nominal drill ∅ | d0 [mm] | 10 | ||
| Diameter of cutting edges ∅ | dcut ≤ [mm] | 10,45 | ||
| Drill hole depth | h1 ≥ [mm] | 65 | 85 | 95 |
| Through hole in the component being connected | df ≤ [mm] | 14 | ||
| Width across flats | [mm] | WS15 | ||
| Washer diameter | dw [mm] | 44 | ||
| Washer thickness | tw [mm] | 4 | ||
| Screw-head height | hn [mm] | 10 | ||
| Max. rated torque of tangential impact screwdriver | Timp,max [Nm] | 400 | ||
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