Concrete screw with hexagon head W-BS/A4 - ANC-(W-BS/S)-A4-WS13-10-15-6X50

Concrete screw with hexagon head W-BS/A4 - ANC-(W-BS/S)-A4-WS13-10-15-6X50 - 1

Concrete screw with hexagon head W-BS/A4 - ANC-(W-BS/S)-A4-WS13-10-15-6X50 - 2

Concrete screw with hexagon head W-BS/A4

Name: Concrete screw with hexagon head W-BS/A4
Brand: Würth
SKU: 5929226015

Concrete screw W-BS type S, A4 stainless steel
ANC-(W-BS/S)-A4-WS13-10-15-6X50

Art.-no. 5929226015

EAN 4046777702262

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Concrete screw with hexagon head W-BS/A4

Art.-no. 5929226015

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x 100 pcs

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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

Würth Catalogue

Datasheets(X)

CAD data (available after login)

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)	50 mm
Attachment height (t fix 1)	15 mm
Attachment height (t fix 2)	10 mm
Thread diameter	7.5 mm
Nominal drill-bit diameter (d 0)	6.0 mm
Drill hole depth (h 1.1)	40 mm
Drill hole depth (h 1.2)	45 mm
Embedding depth (h nom1)	35 mm
Embedding depth (h nom2)	40 mm
External drive	WS13
Material	Stainless steel A4
Surface	Plain
Washer diameter	17 mm
Through-hole in the component to be connected (d f)	8.0 mm
Head type	Hexagon head
Type description	W-BS A4 type S

Anchor size [mm]		6
Minimum axis distance	s_min [mm]	100
Minimum edge distance	c_min [mm]	100
Minimum spacing between the groups of anchors	a_min [mm]	100
Spacing between cavity axes	l_c ≥ [mm]	100
Spacing between tensioning strands	l_p ≥ [mm]	100
Spacing between tensioning strands and drilled hole	a_p ≥ [mm]	50
Nominal drill diameter	d₀ [mm]	6
Through hole in the component being connected	d_f ≤ [mm]	8

Anchor size [mm]		6			8			10
Nominal length of thread engagement	h_nom[mm]	35¹⁾	40	55	45	55	65	55	75	85
Minimum axis distance	s_min [mm]	35	40		40	50		50
Axis distance	s_cr,N [mm]	81	93	132	105	129	156	129	180	204
Minimum edge distance	c_min [mm]	35	40		40	50		50
Edge distance	c_cr,N [mm]	40,5	46,5	66	52,5	64,5	78	64,5	90	102
Minimum member thickness	h_min [mm]	80			80			80	90	102
Nominal drill diameter	d₀[mm]	6			8			10
Diameter of cutting edges	d_cut ≤ [mm]	6,40			8,45			10,45
Drill hole depth	h₁ ≥ [mm]	40	45	60	55	65	75	65	85	95
Through hole in the component being connected	d_f ≤ [mm]	8			12			14
Width across flats	[mm]	WS13			WS13			WS15
Washer diameter	d_w [mm]	15			16			20
Screw-head height	h_n [mm]	6			9			10
Max. rated torque of tangential impact screwdriver	T_imp,max[Nm]	160			300			400
¹⁾ For anchors in a redundant non-structural system according to ETA-16/0128

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 h_ef c ≥ 1.5 h_ef)						9,6
	Compressive zone (non-cracked concrete C20/25²), s ≥ 3 h_ef c ≥ 1.5 h_ef)						11,9
Admissible shear load¹⁾ on an individual anchor without the influence of the edge distance	Tensile zone (cracked concrete C20/25²), s ≥ 10 h_ef)						16,2
	Compressive zone (non-cracked concrete C20/25²⁾, c ≥ 10 h_ef)						16,2
Admissible load under seismic activity performance categories C1 and C2 see European Technical Assessment ETA-16/0043		C1	x	x	x	x	x
		C2
Admissible load when exposed to fire (R30, R60, R90, R120), see European Technical Assessment ETA-16/0043

Anchor size [mm]		6
Mirror thickness [mm]		≥ 25	≥ 30	≥ 35
Anchors in a redundant non-structural system in hollow-core prestressed concrete ceilings⁵⁾	F_perm. [kN]
¹⁾ The partial safety factors of the resistances y_M regulated in the evaluation/approval and a partial safety factor of the effects of γ_F = 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. ³⁾ The admissible loads were determined without axial influence and the influence of the edge distance. ⁴⁾ Number of attachment points ≥ 3 and at least one anchor per attachment point produces a load per attachment point of F_perm ≤ 1.4 kN or number of attachment points ≥ 4 and at least one anchor per attachment point produces a load per attachment point of F≤perm 2.1 kN. The admissible loads can be increased if the design shows that the requirements governing the strength and rigidity of the component to be attached remain satisfied even after the failure of an anchor in terms of the limit state of serviceability and load-bearing capacity. ⁵⁾ The assembly data must be observed.

Nominal length of thread engagement		h_nom [mm]
Anchors in concrete in a non-structural system based on a redundant design³⁾		N_perm. [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 h_ef)	V_perm. [kN] = C20/25²⁾
	Compressive zone (non-cracked concrete C20/25²⁾, c ≥ 10 h_ef)
Permissible bending moment		M_adm [Nm]
Admissible load when exposed to fire (R30, R60, R90, R120), see European Technical Assessment ETA-16/0128

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