Concrete screw W-BS Compact type ST
Concrete screw W-BS/ST Compact
CSCR-(W-BS/ST-COMPACT)-TX25-M8-6X28MM
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- Quick and easy installation without the need for a tangential impact screwdriver
- Time and cost-saving assembly
- Only requires a 30 mm drill hole depth – no need for reinforcements
- Can be assembled by hand
- ETA-15/0091 for anchors in a redundant non-structural system made from concrete
- Fire resistance: R30, R60, R90, R120; Technical Report TR020
- The W-BS Compact can be mounted by hand
- If a cordless drill is used for assembly, it is recommended that at least five preliminary tests are performed on location to ensure the correct drill driver setting and to prevent over-tightening of the W-BS Compact. It is recommended that you start with the drill driver's lowest torque setting and increase it if necessary
- A tangential impact driver must not be used for assembly
Mounting of pipe clamps
Create the drill hole
Clean the drill hole
Position anchor
Screw in anchor
- ETA-15/0091 for anchors in a redundant non-structural system made from concrete
- Fire resistance: R30, R60, R90, R120; Technical Report TR020
Datasheets(X)
- Multiple attachment of non-load-bearing systems with European Technical Assessment
- Economic and efficient mounting solution for HVAC applications or attachment parts that need to be removable, suitable for e.g. pipe and cable clamps, mounting rails, metal profiles, brackets for ceiling substructures etc.
- Use in cracked and non-cracked concrete ≥ C20/25
- W-BS Compact (zinc plated steel) may only be used in dry indoor room conditions
 | |
Type description | W-BS Compact type ST |
Anchor size | 6 mm |
Thread diameter | 7 mm |
Anchor length (l) | 28 mm |
Head type | With connection thread (metric) |
Max. attachment height (t fix) | 3 mm |
Internal drive | TX25 |
Nominal drill-bit diameter (d 0) | 6 mm |
Drill hole depth (h 1) | 28 mm |
Surface | Zinc plated |
Material | Steel |
Embedding depth (h nom) | 25 mm |
Minimum component thickness (h min) | 80 mm |
Connection thread | M8 |
Effective anchoring depth (h ef) | 25 mm |
Through-hole in the component to be connected (d f) | 8 mm |
Drill cutting diameter (d cut) | 6.35 mm |
| Installation parameters | ||
| Anchor size | 6 | |
| Axis distance | scr,N [mm] | 200 |
| Edge spacing | ccr,N [mm] | 150 |
| Minimum component thickness | hmin [mm] | 80 |
| Length of anchor in drilled hole | hnom ≥ [mm] | 25 |
| Fastening height | tfix [mm] | L-hnom |
| Nominal drill ∅ | d0 [mm] | 6 |
| Drill cutting ∅ | dcut ≤ [mm] | 6,35 |
| Drill hole depth | h1 ≥ [mm] | 28 |
| Through hole in the component being connected | df ≤ [mm] | 8 |
| Mounting torque | Tinst [Nm] | 10 |
| Performance data (for hnom≥ 25) | ||
| Anchor size [mm] | 6 | |
| Multiple attachment of non-load-bearing systems in concrete1) | Fadm [kN] = C20/25-C50/60 | 0,43 |
| Admissible load when exposed to fire2) | R30; Fperm [kN] | 0,27 |
| R60; Fperm [kN] | 0,27 | |
| R90; Fperm [kN] | 0,22 | |
| R120; Fperm [kN] | 0,17 | |
| Permissible bending torque | Mperm. [Nm] | 7,9 |
| 1) The partial safety factors of the resistances regulated in the approval and a partial safety factor of the actions of γF = 1.4 have been taken into account. For information on combining tensile and shear loads, on the influence of the edge distance, and on anchor groups, please refer to the European Technical Approval Guidelines (ETAG), Annex C. 2) The partial safety factors for the load capacity when exposed to fire of γM,fi = 1.0, as recommended in the approval, and the partial safety factor of the action of γF = 1.0 have been taken into account. | ||
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