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Concrete screw with hexagon head W-BS/A4

Concrete screw W-BS type S, A4 stainless steel

Art.-no. 5929221045

Prices for customers after login

Concrete screw with hexagon head W-BS/A4

Art.-no. 5929221045

Prices for customers after login



x25 pcs

Exclusively for trade customers

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Highest load capacities and efficient mounting. Ideal for fastening metal structures in concrete, A4 stainless steel

Extremely flexible to use

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

Attachment can be adjusted up to two times after assembly

(Size 8–14) so as to, for example, facilitate the alignment of railings or anchor plates (observe assembly instructions in permit or enclosed leaflet)

  • High loads

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

  • Very quick and easy assembly

  • No installation torque required

  • Immediate load-bearing capacity – no waiting

  • Can be processed with Würth extraction drill (sizes 8-14)

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

ETA-16/0043 for individual attachment

Option 1, cracked and non-cracked concrete (size 6–10), earthquake C1 (size 8–14)

ETA-16/0128 for multiple attachment

Concrete (size 6)

Hollow-core pre-stressed concrete ceilings (size 6)

Fire resistance

R30, R60, R90, R120; Technical Report TR020 (included in 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 size 6:

Anchorage of non-load-bearing systems in cracked and non-cracked concrete

Attachment in hollow-core pre-stressed concrete ceilings size 6

Suitable for attaching

e.g. metal structures, metal profiles, brackets, footboards, supports, cable trays, pipes and railings

For use in concrete < C20/25 and pressure-resistant natural stone (without approval)

W-BS/A4 (stainless steel A4) can be used in dry indoor areas, outdoors (including in industrial atmospheres and coastal areas) or in wet rooms, provided that no particularly aggressive conditions are present

Anchor size

10 mm

Thread diameter

12 mm

Anchor length (l)

100 mm

Attachment height (t fix 1)

45 mm

Attachment height (t fix 2)

25 mm

Attachment height (t fix 3)

15 mm

Nominal drill-bit diameter (d 0)

10 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



Stainless steel A4, 1.4401

Washer diameter

20 mm

Art.-no. Cust. Mat. No.

Hazardous Material

Product information

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