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WZ steel strapping

Fastening strap WZ EN 14545
STSTRP-EN14545-(Z275)-40X1,5MMX50M

Art.-no. 0681040251
EAN 4038898544357
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Fir diagonal bracing of roof and wall structures (as tie bar for wood to wood connections)
  • Deeper embedding of fastener in wooden substrate for higher bearing loads

  • 25% lower weight for easier installation

  • Patented edge shaping and high-quality steel for higher tensile strength

  • Sheet metal hot-dip galvanised on both sides (S350DG + Z275MAC (approx. 275 g both sides)) in line with EN 10346:2009-07, thickness 1.5 mm

  • Application in utilisation classes 1 and 2 in line with EN 1995:2013
Proof of Performance

CE marking in line with EN 14545:2009-02

Notice

The nail connection at the end generally dictates the load-bearing capacity.



Multiple wind brace bands can be arranged side by side to distribute stronger forces. It is advisable to use a wind brace band tensioner to ensure the straps are evenly tightened.



Wind brace bands are fastened using Würth anchor nails or ASSY joist hanger screws.



Per attachment point, at least 2 nails or ASSY joist hanger screws must be used.



Edge clearances and centre to centre distances in line with EC5 must be observed for nails and screws.



Ensure that wind and tensile forces are correctly transferred to the roof structure.

Application area
Instructions

CE marking in line with EN 14545:2009-02

The usage instructions are recommendations based on the tests we have conducted and on our experience; carry out your own tests before each application. Due to the large number of applications and storage and processing conditions, we do not assume any liability for a specific application result. Insofar as our free customer service provides technical information or acts as an advisory service, no responsibility is assumed by this service except where the advice or information given falls within the scope of our specified, contractually agreed service or the advisor was acting deliberately. We guarantee the consistent quality of our products. We reserve the right to make technical changes and further develop products.

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Application area

Diagonal bracing of roof and wall structures

Instructions

Würth WZ wind brace bands can be directly fastened to the tops of rafters. Ensure that wind and tensile forces are correctly transferred to the roof structure. Wind brace bands are fastened using Würth anchor nails or ASSY joist hanger screws. At least 2 nails or screws must be used at each rafter crossing point. Edge clearances and centre to centre distances must be observed for the nails and screws. Multiple wind brace bands can be arranged side by side to distribute stronger forces.



Suitable fasteners:


  • Comb/ribbed nails in line with EN 14592: 4.0 x ≥ 40 mm

  • ASSY joist hanger screw: 5.0 x ≥ 40 mm

Width x thickness

40 x 1.5 mm

Length of roll

50 m

Diameter of hole

5 mm

Weight

22000 g

Approval

EN 14545:2009-02; AbZ Z-9.1-545

Min. yield strength (ReH)

350 N/mm²

Min. tensile strength Rm

420 N/mm²

Min. breaking elongation A80

16 %

Material

Sheet steel

Material designation

S350GD

Material standard

DIN EN 10346:2009-07

Surface

Hot dip galvanized

Characteristic load capacities:
Characteristic load capacity R 1,k [kN] minimum from:
Width [mm] Thickness [mm] Steel or
wind brace band WZ
Wood when using Würth anchor nail 4.0 mm x L Wood when using ASSY 3.0 joist hanger screw 5.0 mm x L
40 1,5 15,7 1.68 x n 1.99 x n 2.15 x n 2.13 x n 2.29 x n 2.44 x n
60 23,6
80 37,8
n = number of nails at anchor point
Values apply to wood with bulk density of 350 kg/m³
Measured load capacity values:
Wood: R,d = R,k x kmod/γm (with wood γm = 1.3)
Steel: R,d = R,k/γm (with steel γm = 1.3)
Measurement aid Würth wind brace band WZ measurement
Characteristic load capacity R1,k [KN] minimum of the wind brace band WZ from:
Width (mm) Thickness (mm) Steel or wind brace band WZ Wood when using
Würth anchor nails 4.0 mm x L
Wood when using ASSY 3.0 joist hanger screw 5.0 mm x L
40 mm 50 mm 60 mm 40 mm 50 mm 60 mm
40 1,5 15,7 1.68 x n 1.99 x n 2.15 x n 2.15 x n 2.29 x n 2.44 x n
60 1,5 23,6
80 1,5 37,8
Characteristic load capacity Rk [KN] of the wind brace band tensioning system (ETA- 15/0043)
WRB wind brace band tensioner WRB anchor connection WRB anchor plate type 2 WRB Butterfly
45° 45°
24,2 14 18,7 15,2 17,7
Required accessory:
 
Product
Description
Quantity
PU
Price
/PU

RIDGNL-(A3K)-4X60MM

Galvanised steel, blue coated (A2K)
x 250 pcs
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.
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
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.

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Price for 1 unit
Price for 100 units
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Art.-no.
Cust. Mat. No.

Hazardous Material

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