Twistfix

Three Steps to Structural Success

Wall tie anchors  are much easier to instal than most people give them credit for; the process can actually be broken down into three very simple steps. The extra-long, heavy duty wall ties we supply have been designed by Thor Helical to provide the most professional results every time, whether used in brick, block, stone or concrete walls. Visit the product page for a special surprise discount.

The Design

A feat of technology and engineering, all Thor Helical remedial wall ties from Twistfix benefit from twin-start helical blades with a reactive interface angle, allowing and extremely accurate self-tapping penetrative path to be formed when they are hammered into the masonry element. Each of these heavy-duty wall tying anchors has a diameter of 12mm and is manufactured from marine-grade stainless steel for superior resistance to corrosion.

The helix consistency and driving configuration aspects of Thor Helical wall ties are patented. Traditional ties involve clamping the wire at one end while the other is turned, developing a helix with a varying pitch across its length, Thor helical ties use advanced twisting die technology to control this pitch more precisely, forming tightly-mating threads that guarantee superior interlock performance.

At the driving end, the patented arrangement (Pat GB2439633) guarantees safe, controlled installation at close quarters and low cost tooling that allows the operator to keep both hands on the drill throughout, making it easier during insertion.

The Quality

Helical wall ties have been used for more than 25 years and are recommended in B.R.E. Digest 329 (Table 5) as being “suitable for use in all remedial situations”, irrespective of the buildings substrate or its fire performance criteria.  The long-series 12mm diameter ties have been subject to intensive independent testing programmes and are CE marked to be reliable in all types of masonry strapping applications including; tying facades at 'T'-junctions, stitching walls at cracked corners, reinforcing parapet walls and pinning masonry or brick arches.  The 12mm ties have twice the strength of any other hammer-driven helical ties of similar design or function.

The Benefits

The interlock anchorage of the wall tie does not exert expansive stress and does not or rely on adhesives, enabling it to be used in sub-zero temperatures and without the use of  cement grouts.  The structural anchorage continues to provide its support throughout temperature extremes, including fire, without being affected.  The dry fix mechanical wall connectors are 10 times faster to instal than cement-grouted structural pinning systems.

In cross-sectional profile, the tie reveals a wide portion which is there to maximise grip and a narrow portion responsible for accommodating natural building movements and vibrations.­  When under load, the helical blades impart an accumulative cone of stress at tangential angles to the helix; this means that the load is evenly spread across the length of the wall anchor.  Our long-series 12mm wall tie anchors are available in 8 standard lengths ranging from 610mm (24") to 1670mm (66").

The 3 Steps

DRILL a small pilot hole using a light hammer drill. Make sure to stop the rotation of the drill before drilling the remote wall layer to prevent whipping.

Using a lightweight hammer drill and SDS settiing tool, HAMMER-DRIVE the tie into the masonry.

Once the self tapping tie is recessed beneath the wall face, FINISH the job by disguising the entry bore with suitable colour-matching mortar.

 

We want to ensure a 100% success rate to our customers and our team are always available to help you get the very best from your purchase. Call us today and find out what makes our products a cut above the rest.

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