Concrete screw with pan head W-BS/A4

Name: Concrete screw with pan head W-BS/A4
Brand: Würth
SKU: 5929246065

Concrete screw W-BS A4 type P, stainless steel A4
CONCSCR-(W-BS/P)-A4-TX30-45-65-6X100

Art.-no. 5929246065

EAN 4046777702194

All versions

Specification

Ideal for fastening mounting rails, panel materials or fire-protection panels in concrete, A4 stainless steel

Extremely flexible to use due to three anchoring depths

Fastening can be adjusted up to twice after installation, for example in order to align anchor plates or rails (please refer to the assembly guide)

High loads

Smallest axial and edge clearance due to very low expansion effect

Very fast and easy assembly and immediately load-bearing

Proof of Performance

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

Static and quasi-static effects (∅6)

Seismic effect, performance category C1 (∅6)

Fire resistance R30, R60, R90, R120

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

Cracked and non-cracked concrete, (∅6)

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

Fire resistance R30, R60, R90, R120

Fire resistance rating when exposed to fire according to the uniform temperature time curve in masonry (Mz, KSL, KS), and reinforced concrete, (∅6) - expert report no. 2101/173/18 - 2018

Notice

When installing with a tangential impact screwdriver, the recommended maximum rated torque must be observed. When used outdoors, the drill hole can be sealed with WIT-BS injectable mortar.

Application area

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 fixing point, option 1, cracked and non-cracked concrete:

Static and quasi-static effects (∅6)

Seismic effect, performance category C1 (∅6)

Fire resistance R30, R60, R90, R120

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

Cracked and non-cracked concrete, (∅6)

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

Fire resistance R30, R60, R90, R120

Fire resistance rating when exposed to fire according to the uniform temperature time curve in masonry (Mz, KSL, KS), and reinforced concrete, (∅6) - expert report no. 2101/173/18 - 2018

Application

Application area

Fixing point with approval (∅6):

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

Anchors in a redundant non-structural system with approval:

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

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

Pan head with attractive head geometry, ideally suited for fastening medium loads in concrete:

Fastening of e.g. mounting rails, panels, sheets, fire protection panels, handrails, metal profiles, brackets, wooden substructures etc. in in-place installation

Fastenings under seismic conditions in earthquake areas

Fastenings under exposure to fire

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 conditions, outdoors (including in industrial atmospheres and coastal areas) or in wet rooms, provided that no particularly aggressive conditions are present

Technical information

Anchor size	6 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
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
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
Internal drive	TX30
Material	Stainless steel A4
Surface	Plain
Head diameter	15 mm
Through-hole in the component to be connected (d f)	8.0 mm
Head type	Pan head
Type description	W-BS A4 type P

Installation parameters in pre-loaded hollow ceiling panels
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

Installation parameters in concrete
Anchor size [mm]		6
Nominal length of thread engagement	h_nom [mm]	35¹⁾	40	55
Minimum axis distance	s_min [mm]	35	40
Axis distance	s_cr,N [mm]	81	93	132
Minimum edge distance	c_min [mm]	35	40
Edge distance	c_cr,N[mm]	40,5	46,5	66
Minimum member thickness	h_min [mm]	80
Nominal drill diameter	d₀ [mm]	6
Diameter of cutting edges	d_cut ≤ [mm]	6,40
Drill hole depth	h₁ ≥ [mm]	40	45	60
Through hole in the component being connected	d_f ≤ [mm]	8
Internal drive		TX30
Head diameter	d_h [mm]	15
Screw-head height	h_h [mm]	3,5
Max. rated torque of tangential impact screwdriver	T_imp,max [Nm]	160
¹⁾For anchors in a redundant non-structural system

Performance data in concrete - fixing point according to ETA-16/0043
Anchor diameter [mm]			6
Nominal length of thread engagement		h_nom [mm]	40	55
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)	N_perm. [kN] = C20/25²⁾	1,0	1,9
	Compressive zone (non-cracked concrete C20/25²⁾, s ≥ 3 h_ef c ≥ 1.5 h_ef)		1,9	4,3
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⁾	3,0	3,3
	Compressive zone (cracked concrete C20/25²⁾, c ≥ 10 h_ef)		3,3	3,3
Permissible bending moment		M_adm [Nm]	4,8
Admissible load under seismic activity performance categories C1 and C2 see European Technical Assessment ETA-16/0043		C1	x	x
		C2
Admissible load when exposed to fire (R30, R60, R90, R120), see European Technical Assessment ETA-16/0043

Performance data in hollow-core prestressed concrete ceilings 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⁾	F_perm. [kN]	0,4	0,8	1,2
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.

Performance data in concrete - anchors in a redundant non-structural system according to ETA-16/0128
Anchor size [mm]			6
Nominal length of thread engagement		h_nom [mm]	35	55
Anchors in concrete in a non-structural system based on a redundant design³⁾		N_perm. [kN] ≥ C20/25	0,6	3.6⁴⁾
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⁾	2,0	3,3
	Compressive zone (non-cracked concrete C20/25²⁾, c ≥ 10 h_ef)		2,8	3,3
Permissible bending moment		M_adm [Nm]	4,8
Admissible load when exposed to fire (R30, R60, R90, R120), see European Technical Assessment ETA-16/0128

Documents/CAD data

Product information

Datasheets (1)

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Accessory

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