This Wall Anchor Kit includes extra-long drive-in helical wall ties used as chemical-free structural connectors to secure a building’s façade to a perpendicular cross wall or party wall.

The 12mm diameter self-tapping ties are driven deep into masonry to form a mechanical connection that requires no cement, grout or resin, making them especially suitable for remedial work on heritage properties, listed buildings and ancient structures.

The 910mm long, 12mm diameter structural ties have twice the mass of other self-tapping helical wall ties of similar design or function. When driven into an undersized pilot bore, they corkscrew into brick, block, limestone and concrete, delivering outstanding resistance to axial and shear loads.

Manufactured from marine grade stainless steel (AISI 316) and featuring a cross sectional area of 29mm², these structural wall anchors provide exceptional durability and structural performance.

What’s Included in the Kit

• 10 pcs – 12mm (1/2") diameter x 910mm (36”) long spiral wall connectors

• 1 metre SDS masonry drill bit

  • 8mm (3/8”) for soft or medium strength masonry

  • 10mm (7/16”) for hard masonry

• Professional SDS adaptor designed to hammer the structural wall connectors into a pre-piloted masonry wall

For ease of application, safety considerations and to preserve the life of the long drill bits, smaller drill bits should be used to start pilot holes before final drilling.

Key Performance Benefits

• No material compatibility issues with lime mortars

• Suitable for listed buildings and historic masonry

• No installation temperature restrictions. Can be used in freezing conditions

• At least twice as strong in compression, tension and shear than alternative helical fixings

• 8–10 times quicker to install than chemically bonded systems

• Significantly less disturbance to the structure than other deep pinning systems

• Immediate mechanical engagement with no curing time

Applications

In addition to tying façades to cross walls and party walls, these versatile structural masonry anchors are ideal for:

• Securing quoins in brick or stone buildings

• Tying thick or rubble-filled walls

• Pinning masonry arches

• Introducing vertical reinforcement to parapet walls

• Structural remedial repairs in brick, stone and mixed masonry

Technical Specification

• Diameter: 12mm

• Length: 910mm (36”)

• Material: AISI 316 Marine Grade Stainless Steel

• Cross Sectional Area: 29mm²

• Installation: Drive-in mechanical fixing into undersized pilot bore

• Country of Manufacture: Britain

• Patent Protection: UK Patent No. GB 2439633

FAQ Section

What is a helical wall anchor kit used for?

A helical wall anchor kit is used to tie a building’s façade to a perpendicular cross wall or party wall. It stabilises masonry without using resin or grout.

Do these wall anchors require resin or grout?

No. These are mechanical drive-in structural ties that form a bond through their helical design. No chemical bonding agents are required.

Are these suitable for listed or heritage buildings?

Yes. They are compatible with lime mortars and do not introduce moisture into the structure, making them ideal for heritage and conservation projects.

Can they be installed in cold weather?

Yes. There are no installation temperature restrictions. They can be used in freezing conditions.

What masonry types can they be installed into?

Brick, block, limestone and concrete.

How strong are 910mm helical wall anchors?

These ties are at least twice as strong in compression, tension and shear compared to alternative self-tapping helical fixings of similar design.

Delivery Costs

Below is the standard tariff for guidance purposes.

Actual costs will be confirmed at point of sale and any variances you will be notified within 24 working hours of receipt of order

Free delivery

We offer free next-day delivery for all orders over £150 (ex VAT) (UK Mainland Only).

Next Day Delivery (UK Mainland Only)

Next day delivery is available for orders placed before 2pm Monday - Friday (working days). Delivery will be made on the next working day.

For orders placed before 2pm on a Friday, delivery will be made on the following Monday. For orders placed after 2pm on a Friday and over the weekend, delivery will be made on the following Tuesday. For orders placed on a Bank Holiday, goods will be dispatched on the next working day (e.g goods will be dispatched on the Tuesday for delivery on Wednesday). 

Pre 10.30am and Pre 12:00pm Next Day Delivery 

These delivery options are available at an extra charge. Delivery prices are shown at checkout stage. Orders need to be placed before 2pm Monday - Friday (working days) for delivery on the following working day.

Delivery Disclaimer: Acceptance of Delays

By placing an order on our website, you acknowledge and accept that delivery times are estimates and may be subject to delays due to various factors beyond our control, including, but not limited to, weather conditions, transportation issues, or other unforeseen circumstances. While we make every effort to ensure timely delivery, we cannot guarantee specific delivery dates.

If there are significant delays, we will do our best to keep you informed.

Thank you for your understanding and patience.

Returns Policy

You have 14 days from the date of purchase to notify us you wish to return your items and receive a full refund (ex. delivery and card fees) in line with our terms and conditions. Please email us to request a return at sales@twistfix.co.uk