Fixanchor W-FA/A4 - ANC-(W-FA)-A4/70-35-M20X180

Fixanchor W-FA/A4 - ANC-(W-FA)-A4/70-35-M20X180 - 1

Fixanchor W-FA/A4 - ANC-(W-FA)-A4/70-35-M20X180 - 2

Fixanchor W-FA/A4 - ANC-(W-FA)-A4/70-35-M20X180 - 3

Fixanchor W-FA/A4

Name: Fixanchor W-FA/A4
Brand: Würth
SKU: 0904412002

Fixanchor W-FA A4 stainless steel
ANC-(W-FA)-A4/70-35-M20X180

Art.-no. 0904412002

EAN 4045727378625

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Fixanchor W-FA/A4

Art.-no. 0904412002

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Fixanchors for standard applications in uncracked concrete and anchors in a redundant non-structural system in cracked concrete (size M6). A4 stainless steel

Very flexible application thanks to three effective anchorage depths

Small spacings and edge distances

Time-saving push-through installation

Proof of Performance

European Technical Assessment ETA-02/0001 for individual fixing point, option 7, uncracked concrete: Static or quasi-static action (M6-M20)

European Technical Assessment ETA-06/0162 for anchors in a redundant non-structural system in non-load-bearing systems, cracked and uncracked concrete, size M6

Fire resistance: F30, F60, F90 and F120; exposure to fire according to DIN 4102-2:1977-09 (UTTC - uniform temperature time curve)

Fire resistance: R30, R60, R90 and R120; TR020 (included in ETA-06/0162, size M6 only)

Application area

Heavy steel structures

Fence systems

Post support bracket

Drill the hole

Clean the drill hole

Knock in anchor with mason's mallet or machine setting tool

Apply torque

Product information

Würth Catalogue

Datasheets(X)

CAD data (available after login)

Certificates/ Documents

Application area

Individual fixing point or anchors in a redundant non-structural system with European Technical Approval in normal weight concrete C20/25 to C50/60 (uncracked concrete only)

Anchors in a redundant non-structural system in non-load-bearing systems in concrete (size M6, cracked and uncracked concrete)

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

Fastenings under exposure to fire (size M6 only)

Suitable for anchoring medium to heavy loads in concrete: Mounting of e.g. metal structures, metal profiles, brackets, base plates, cable conduits, pipes, wooden structures, beams, purlins, fences etc.

W-FA/A4 (A4 stainless steel) is suitable for use in dry indoor areas or wet rooms and for use outdoors (including in industrial atmospheres and close to the sea), provided that no particularly aggressive conditions are present


Metric anchor diameter	M20
Anchor length (l)	180 mm
Material	Stainless steel A4
Attachment height (t fix)	35 mm
Max. attachment height reduced (t fix, red)	57 mm
Attachment height (t fix 2)	57 mm
Drill hole depth (h 1)	130 mm
Drill hole depth (h 1.2)	110 mm
Effective anchoring depth (h ef)	100 mm
Effective anchoring depth reduced (h ef, red)	78 mm
Effective anchoring depth (h ef 2)	78 mm
Width across flats	30 mm
Nominal drill-bit diameter (d 0)	20 mm
Through-hole in the component to be connected (d f)	22 mm
Thread length (L th)	70 mm
Approval	ETA-02/0001

Performance data
Anchor diameter [mm]			M6		M8		M10		M12		M16		M20
F60 [kN]	0,5	-	0,8	-	1,2	-	1,8	-	3,4	-	5,25	-
F90 [kN]	0,3	-	0,5	-	0,8	-	1,2	-	2,2	-	3,6	-
F120 [kN]	0,25	-	0,4	-	0,6	-	0,9	-	1,7	-	2,75	-
Standard effective anchorage depth/reduced effective anchorage depth		h_ef/h_ef red [mm]	40	30	44	35	48	42	65	50	82	64	100	78
Admissible centric tension load¹⁾on an individual anchor without the influence of the edge distance	Compressive zone (uncracked concrete) C20/25²⁾, s ≥ 3 h_ef, c ≥ 1.5 h_ef)	N_adm [kN] = C20/25²⁾	4,1	2,9	5,7	5,0	7,6	6,5	12,6	8,5	17,8	12,3	24	16,5
Admissible shear load¹⁾on an individual anchor without the influence of the edge distance	Compressive zone (uncracked concrete C20/25²⁾, c ≥ 10 h_ef)	V_adm[kN] = C20/25²⁾	2,9	2,9	6,3	5,0	8,0	6,5	14,3	8,5	23,6	23,6	37,1	33,1
Admissible bending moment		M_adm [Nm]	5,1	5,1	13,1	13,1	25,7	25,7	44,6	44,6	99,9	99,9	195	195
Fire resistance rating (W-FA/S)		F30 [kN]	0,9	-	1,4	-	2,2	-	3,2	-	6,0	-	10,0	-
		¹⁾ The partial safety factors of the resistances regulated in the approval and a partial safety factor of the actions of γ_F = 1.4 have been taken into account. For information on combining tensile and shear loads, on the influence of the edge distance and on anchor groups, please refer to the European Technical Approval Guidelines (ETAG), Annex C. ²⁾ The concrete has normal reinforcement. Higher values are possible for higher concrete compressive strengths.

Characteristic values
Embedment depth	h_nom/h_nom,red[mm]	49	39	56	47	62	56	81	66	99	83	121	99
Nominal drill dia.	d₀ [mm]	6	6	8	8	10	10	12	12	16	16	20	20
∅ of cutting edges	d_cut ≤ [mm]	6,4	6,4	8,45	8,45	10,45	10,45	12,5	12,5	16,5	16,5	20,55	20,55
Drill hole depth	h₁/_h1,red ≥ [mm]	55	45	65	55	70	65	90	75	110	95	130	110
Through hole in the component being connected	d_f ≤ [mm]	7	7	9	9	12	12	14	14	18	18	22	22

Individual fixing point
Minimum member thickness	h_min [mm]	100	80	100	80	100	100	130	100	160	130	200	160
Uncracked concrete, option 7 (A4/HCR stainless steel - M6 to M20: ETA-02/0001)
Torque while installing anchor	T_inst = [Nm]	6	6	15	15	25	25	50	50	100	100	160	160
Spacing	s_cr,N [mm]	120	90	132	105	144	126	195	150	240	192	300	234
Edge distance	c_cr,N [mm]	60	45	66	53	72	63	98	75	120	96	150	117
Minimum spacing	s_min [mm]	35	35	35	60	45	55	60	100	80	110	100	140
Minimum spacing	for c ≥ [mm]	40	-	65	-	70	-	100	-	120	-	150	-
Minimum edge distance	c_min [mm]	35	40	45	60	55	65	70	100	80	110	100	140
Minimum edge distance	for s ≥ [mm]	60	-	110	-	80	-	100	-	140	-	180	-