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Concrete screw stair bolt W-BS/A4 with connecting thread - ANC-(W-BS/ST)-A4-WS9-M12X35-60-10X140 Concrete screw stair bolt W-BS/A4 with connecting thread - ANC-(W-BS/ST)-A4-WS9-M12X35-60-10X140
Concrete screw stair bolt W-BS/A4 with connecting thread - ANC-(W-BS/ST)-A4-WS9-M12X35-60-10X140 - 1
Concrete screw stair bolt W-BS/A4 with connecting thread - ANC-(W-BS/ST)-A4-WS9-M12X35-60-10X140 - 2

Concrete screw stair bolt W-BS/A4 with connecting thread

Concrete screw W-BS A4 type ST, stainless steel A4
ANC-(W-BS/ST)-A4-WS9-M12X35-60-10X140

Art.-no. 5929261060
EAN 4046777702132
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Price for selected packaging unit
Concrete screw stair bolt W-BS/A4 with connecting thread

Art.-no. 5929261060

Price for selected packaging unit
Quantity
PU
x 25 pcs

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Highest loads and efficient installation. Ideal for mounting attachments outdoors in concrete that need to be removable, A4 stainless steel
  • Extremely flexible to use due to three anchoring depths

  • Very high loads

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

  • Very fast and simple assembly, immediately load-bearing and easy to dismantle

  • Pre-positioned, push-through or stand-off installation possible

  • Attachment can be adjusted up to two times after assembly
Proof of Performance

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


  • Static and quasi-static effects (∅8 - ∅10)

  • Seismic effect, performance category C1 (∅8 - ∅10)

  • 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 ST stair bolt)


  • Use in combination with injectable mortar WIT-BS as bonded screw anchor WIT-BS

  • In reinforced and non-reinforced and cracked and non-cracked concrete C20/25 to C50/60


Tensile capacity in concrete hollow body ceilings, (∅8 - ∅10) - expert report no. 21641 - 2016

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

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
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Application area

Fixing point:


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



Ideal for securing medium to heavy loads in concrete where disassembly of the attachment part is required:


  • Securing e.g. stadium seats, barriers, railings, steel structures, supports and carriers, fence systems etc. in pre-positioned and push-through installation

  • Fastenings under seismic conditions in earthquake areas

  • Fastenings under exposure to fire


W-BS/A4 (A4 stainless steel) 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

10 mm

Anchor length (l)

140 mm

Connection thread

M12

Attachment height (t fix 1)

60 mm

Attachment height (t fix 2)

40 mm

Attachment height (t fix 3)

30 mm

Thread diameter

12 mm

Nominal drill-bit diameter (d 0)

10.0 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

WS9

Material

Stainless steel A4

Surface

0 - not applicable

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

14.0 mm

Head type

With connection thread (metric)

Type description

W-BS A4 type ST

Anchor size [mm] 8 10
Nominal length of thread engagement hnom [mm] 45 55 65 55 75 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) 		Nperm. [kN] = C20/252) 2,4 4,3 5,7 4,3 8,0 9,6
Compressive zone
(non-cracked concrete C20/252),
s ≥ 3 hef c ≥ 1.5 hef) 		3,6 5,7 7,6 5,7 9,5 11,9
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) 3,6 4,8 6,4 4,8 15,9 16,2
Compressive zone
(non-cracked concrete C20/252), c ≥ 10 hef) 		5,0 6,8 8,1 6,8 16,2 16,2
1) The partial safety factors of the resistances yM regulated in the approval/evaluation and a partial safety factor of the effects of γF = 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.
Anchor size [mm] 8 10
Nominal length of thread engagement hnom [mm] 45 55 65 55 75 85
Minimum axis distance smin [mm] 40 50 50
Axis distance scr,N [mm] 105 129 156 129 180 204
Minimum edge distance cmin [mm] 40 50 50
Edge distance ccr,N [mm] 52,5 64,5 78 64,5 90 102
Minimum member thickness hmin [mm] 80 80 90 102
Nominal drill diameter d0 [mm] 8 10
Diameter of cutting edges dcut ≤ [mm] 8,45 10,45
Drill hole depth h1 ≥ [mm] 55 65 75 65 85 95
Through hole in the component being connected df ≤ [mm] 12 14
Width across flats [mm] WAF7 WAF9
Connecting thread [mm] M10 x 30 ∅10x140: M12 x 35
∅10x160: M12 x 55
Max. rated torque of tangential impact screwdriver Timp,max [Nm] 300 400
Installation torque Tinst ≤ [Nm] 20 40

Art.-no.
Cust. Mat. No.

Hazardous Material

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