Concrete screw with countersunk head W-BS/S

Concrete screw W-BS steel zinc plated type SK

Art.-no. 5929136065

Prices for customers after login

Concrete screw with countersunk head W-BS/S

Art.-no. 5929136065

Prices for customers after login



x100 pcs
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For surface-flush fixtures such as railings or handrails, zinc-plated steel

Extremely flexible to use

Three anchoring depths (sizes 6 – 14) and a large variety of types

Fastening can be adjusted up to twice after installation

(Sizes 8 - 14), for example in order to align railings or anchor plates (please refer to the assembly guide in the approval or the enclosed leaflet)

  • High load-bearing capacities

  • Virtually no expansion effect, enabling minimal axis and edge distances to be maintained

  • Very quick and easy to install

  • No installation torque required

  • Immediate load-bearing capacity – no waiting

From size 8, we recommend the use of a suitable tangential impact screwdriver for installation.

If several anchors are arranged behind each other in the same load direction, only one anchor is positioned for transverse loads.

ETA-16/0043 for individual attachment

Option 1, cracked and non-cracked concrete (sizes 6–10), seismic performance category C1 (sizes 8–14)

ETA-16/0128 for multiple attachment

Concrete (sizes 5 and 6)

Hollow-core prestressed concrete ceilings (size 6)

Fire resistance

R30, R60, R90, R120; Technical Report TR020 (included in the approvals)

Application area

Individual attachment size 6 – 10:

Standard concrete C20/25 to C50/60 (cracked and non-cracked concrete, seismic performance category C1 for sizes 8–14)

Multiple attachment sizes 5 and 6:

For anchoring non-load-bearing systems in non-cracked and cracked concrete

For attachment in hollow-core prestressed concrete ceilings, size 6

Specially suited for flush-mounted, visually appealing installations:

e.g. stair and balcony railings, handrails, steel structures, wooden structures, metal profiles

Can be used in concrete < C20/25 and compression-proof natural stone (without approval)

W-BS/S (galvanised steel) approved for use in dry indoor rooms

Anchor size

6 mm

Thread diameter

7.5 mm

Anchor length (l)

100 mm

Attachment height (t fix 1)

65 mm

Attachment height (t fix 2)

60 mm

Attachment height (t fix 3)

45 mm

Nominal drill-bit diameter (d 0)

6 mm

Drill hole depth (h 1.1)

40 mm

Drill hole depth (h 1.2)

45 mm

Drill hole depth (h 1.3)

60 mm

Embedding depth (h nom1)

35 mm

Embedding depth (h nom2)

40 mm

Embedding depth (h nom3)

55 mm

Head diameter (d sk)

13 mm

Internal drive


Head type

Countersunk head




Zinc plated

Hazardous Material

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