Welcome to Würth Germany For trade customers only Contact +49 7940 15-2400

Concrete screw with hexagon head W-BS/A4

Concrete screw W-BS type S, A4 stainless steel
ANC-(W-BS/S)-A4-WS13-5-25-6X60

Art.-no. 5929226025
EAN 4046777702279

-,--
price per selected packing unit
| Individual prices for customers after login

Show availability in Würth trade store
Exclusively for trade customers

Register now and access more than 125,000 products

Highest load capacities and efficient mounting. Ideal for fastening metal structures in concrete, A4 stainless steel
  • Extremely flexible to use due to three anchorage 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
Proof of Performance

European Technical Assessment ETA-16/0043 for individual fixing point, option 1, cracked and uncracked concrete:


  • Static and quasi-static effects (∅6 - ∅10)

  • Seismic effect, performance category C1 (∅6 - ∅10)

  • Fire resistance R30, R60, R90, R120


European Technical Assessment ETA-16/0128 for multiple anchors in a redundant non-structural system:


  • Cracked and uncracked concrete, (∅6)

  • Hollow-core prestressed concrete ceilings C30/37 - C50/60, (∅6)

  • 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 (∅10, type S hexagon head)


  • 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


Tensile capacity in concrete hollow body ceilings, (∅6 - ∅10) - expert report no. 21641 - 2016



Fire resistance rating when exposed to fire according to the uniform temperature time curve in masonry (Mz, KSL, KS) and reinforced concrete - expert report no. 2101/173/18 - 2018

Notice

From size 8, we recommend the use of a suitable tangential impact screwdriver for installation. The recommended nominal torque must be observed. When used outdoors, the drill hole can be sealed with WIT-BS injectable mortar.

Application area

Steel supports

Brackets

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

European Technical Assessment ETA-16/0043 for individual fixing point, option 1, cracked and uncracked concrete:


  • Static and quasi-static effects (∅6 - ∅10)

  • Seismic effect, performance category C1 (∅6 - ∅10)

  • Fire resistance R30, R60, R90, R120


European Technical Assessment ETA-16/0128 for multiple anchors in a redundant non-structural system:


  • Cracked and uncracked concrete, (∅6)

  • Hollow-core prestressed concrete ceilings C30/37 - C50/60, (∅6)

  • 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 (∅10, type S hexagon head)


  • 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


Tensile capacity in concrete hollow body ceilings, (∅6 - ∅10) - expert report no. 21641 - 2016



Fire resistance rating when exposed to fire according to the uniform temperature time curve in masonry (Mz, KSL, KS) and reinforced concrete - expert report no. 2101/173/18 - 2018

Product information

Datasheets(X)

Certificates/ Documents

 | 

 | 

Application area

Individual fixing point with approval (∅6 - ∅10):


In normal weight concrete C20/25 to C50/60 (cracked and uncracked concrete)



Multiple anchors in a redundant non-structural system, with approval:


  • In normal weight concrete C20/25 to C50/60 (cracked and uncracked concrete), (∅6)

  • In hollow-core prestressed concrete ceilings C30/37 - C50/60, (∅6)


Suitable for fastening medium to heavy loads in concrete:


  • Mounting of e.g. railings, base plates, supports, metal structures, metal profiles, brackets, etc. in in-place installation

  • Fastenings under seismic conditions in earthquake areas

  • Fastenings under exposure to fire


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



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

Anchor size

6 mm

Anchor length (l)

60 mm

Attachment height (t fix 1)

25 mm

Attachment height (t fix 2)

20 mm

Attachment height (t fix 3)

5 mm

Thread diameter

7.5 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

External drive

WS13

Material

Stainless steel A4

Surface

Plain

Washer diameter

17 mm

Through-hole in the component to be connected (d f)

8 mm

Head type

Hexagon head

Type description

W-BS A4 type S

Performance data in concrete - fixing point according to ETA-16/0043
Nominal length of thread engagement 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)
9,6
Compressive zone
(non-cracked concrete C20/252), s ≥ 3 hef c ≥ 1.5 hef)
11,9
Admissible shear load1)
on an individual anchor without the influence of the edge distance
Tensile zone
(cracked concrete C20/252), s ≥ 10 hef)
16,2
Compressive zone
(non-cracked concrete C20/252), c ≥ 10 hef)
16,2
Admissible load under seismic activity performance categories C1 and C2 see European Technical Assessment ETA-16/0043C1xxxxx
C2
Admissible load when exposed to fire (R30, R60, R90, R120), see European Technical Assessment ETA-16/0043
Anchor size [mm]6
Nominal length of thread engagementhnom [mm]
Anchors in concrete in a non-structural system based on a redundant design3)Nperm. [kN] ≥ C20/25
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)
Compressive zone
(non-cracked concrete C20/252), c ≥ 10 hef)
Permissible bending moment Madm [Nm]
Admissible load when exposed to fire (R30, R60, R90, R120), see European Technical Assessment ETA-16/0128
Performance data in concrete - anchors in a redundant non-structural system according to ETA-16/0128
Performance data in hollow-core prestressed concrete ceilings - anchors in a redundant non-structural system according to ETA-16/0128
Anchor size [mm]6
Mirror thickness [mm]≥ 25≥ 30≥ 35
Anchors in a redundant non-structural system in hollow-core prestressed concrete ceilings5)Fperm. [kN]
Installation parameters in concrete
Anchor size [mm]6810
Nominal length of thread engagementhnom [mm]351)4055455565557585
Minimum axis distance smin [mm]3540 4050 50
Axis distancescr,N [mm]8193132105129156129180204
Minimum edge distancecmin [mm]3540 4050 50
Edge distanceccr,N [mm]40,546,56652,564,57864,590102
Minimum member thicknesshmin [mm]80808090102
Nominal drill diameterd0 [mm]6810
Diameter of cutting edgesdcut ≤ [mm]6,408,4510,45
Drill hole depthh1 ≥ [mm]404560556575658595
Through hole in the component being connecteddf ≤ [mm]81214
Width across flats[mm]WS13WS13WS15
Washer diameterdw [mm]151620
Screw-head heighthn [mm]6910
Max. rated torque of tangential impact screwdriverTimp,max [Nm]160300400
Installation parameters in pre-loaded hollow ceiling panels
Anchor size [mm]6
Minimum axis distance smin [mm]100
Minimum edge distancecmin [mm]100
Minimum spacing between the groups of anchorsamin [mm]100
Spacing between cavity axeslc ≥ [mm]100
Spacing between tensioning strandslp ≥ [mm]100
Spacing between tensioning strands and drilled holeap ≥ [mm]50
Nominal drill diameterd0 [mm]6
Through hole in the component being connecteddf ≤ [mm]8
Additional accessory:
 
Product
Description
Quantity
PU
Price
/PU
Blow-out bulb for cleaning drill holes with a smaller diameter

BLWOUTBULB-F.CLN

Packaging unit

The packaging unit defines the number of articles in one packaging. In the catalog segment you can choose from different packaging units if a pop-up menu is displayed.

Just leave the field empty if you don't know the packaging unit when directly entering the article number in the shopping basket or when importing with Easy-/VarioScan. The packaging unit will be determined automatically.

Structure of our article number

The article number is made up of the following: VVVVAAABBB
VVVV = 4 digits for prefix number (please note that the first digit is currently always 0)
AAA = 3 digits for dimension part 1
BBB = 3 digits for dimension part 2

Example article number structures:
Example 1: Screw with dimensions of 4x10 mm:
VVVVAAABBB
00574 10 (2 spaces between the 4 and the 10)

Example 2: Screw with dimensions of 10x20 mm:
VVVVAAABBB
005710 20 (1 space between the 10 and the 20)

Example 3: Flat washer with an internal diameter of 6 mm:
VVVVAAABBB
04076

Information on price display

Price per packaging unit (PU):
The displayed price is always in line with the displayed packaging, if the PU is 250 the price for 250 units, if the PU is 300 the price for 300 units.

Price with price key representation (PSL):
The price always applies to a quantity ruled through the price key:
Price for 1 unit
Price for 100 units
Price for 1000 units

Quantity

The quantity shows the number of pieces or units of measure contained in the order or delivery for the respective article.
In contrast to sales packaging and secondary packaging, the disposal costs for chemical-technical products are shown separately. The breakdown of the individual costs can be found on the relevant products and also in the shopping cart, as well as in our General Terms and Conditions (GTC).

Art.-no.
Cust. Mat. No.

Hazardous Material

Product information

Datasheets()

Datasheets ()

CAD data  | 

Certificates/ Documents

 | 

 | 

Technical information