Crack stitching kit. Ten 6 mm x 1 m bars, grout and tools

Price excl. VAT
Price incl. VAT
(13 items in stock)

Crack Stitching Kit

Use our professional crack stitching kit to strengthen cracked masonry at trade prices. Put together by industry experts, the parts are perfect for reinforcing brick, block and stone walls.

The stitching kit comprises:

  • Ten stainless-steel crack stitch rods (6 mm x 1 m).
  • A tub of WHO 60 polymer-modified grout (3 L yield).
  • A helix mixer paddle to mix the grout.
  • An applicator with an adjustable nozzle to dispense the mix.
  • A pointing iron for finishing the repair.

How to use the Crack Stitching Kit.

First, cut or grind slots along the selected bed joints, 500 mm on each side of the crack. Then, clean the joints and soak them with clean water. Mix the grout, load it into the applicator, and fill each slot to two-thirds deep. Push the rods into the grout and trowel the displaced mortar to fully surround the helix. Finally, point the wall with fresh mortar to camouflage the installation.

How Crack Stitching Strengthens Walls?

The helical bars bridge the fracture, absorb stress and redeploy tension forces along the helix. A series of load-sharing rods create a reinforced zone that curtails crack development. The concealed reinforcement restores strength and stability to the brickwork.

Masonry Crack Stitching Kits are now on Sale at Twistfix.

Our kit makes crack stitching quick, easy and cost-effective. We stock a selection of crack stitching kits ready for rapid delivery to all UK regions. Click here for help & expert advice.

Characteristic Properties & Performance
 Brand  Twistfix
 Helix Diameter  6mm
 Bar Length  1m
 Cross Sectional Area  8mm2
 Material  Stainless Steel (ASIS-304)
 Lead Distance (360o twist)  30mm
 Ultimate Tensile Strength Range  1025-1225Nmm2
 Mean Tensile Capacity  9kN
 0.2% Proof Stress  >870N­/mm2
 UKCA & CE Mark Compliant with  BS EN 845-1:2013
 UKCA & CE Mark Test Method  BS EN 846-4:2002
 Tensile Load - 1 Bar bonded in bed joint with WHO-60 Grout   8.39kN
 Tensile Load - 2 Bars bonded in bed joint with WHO-60 Grout   16.00kN
 Packaging  10 bar kit
 Manufactured for Twistfix by  Thor Helical
 Country of Manufacture  United Kingdom

Delivery options are only available for delivery to mainland UK (excluding Scottish Highlands, Scottish Islands, Channel Islands, Isle Of Man Northern Ireland and Eire). Delivery to Scottish Highlands, Scottish Islands, Channel Islands, Isle Of Man, Northern Ireland and Eire are limited to 20kg and are available at a Premium rate. Please contact us on or via our help line if delivery is required outside these areas. Alternatively select ‘World-wide Delivery’ and a member of our sales staff will contact you regarding your options and costs.


We offer for the mainland UK , as standard, a FREE delivery service on all orders having a value greater than £200.00 (excluding VAT). For orders having a value less than £200.00 (excluding VAT) a carriage fee of £8.50 + VAT will be levied. Goods will be sent by a national carrier on their 1-2 working day standard service. Customers must understand that delays can always happen while their order is with the courier, for this reason we can not guarantee your order will be with you next day.

It is important that the customer ensures that all the delivery details are correct and that the customer or someone acting for the customer is able to sign for the delivery. Twistfix accept no liability for failed deliveries as a result of incorrect delivery details or the absence of any authorised signatory. Twistfix will attempt delivery to the recipient between the hours of between 8am and 6pm. If no one is available to receive the delivery an attempt may be made to leave the item with a neighbour. Alternatively the carrier may return the item to the sorting office and leave a calling card at the recipient's address to advise of the attempted delivery. It is the responsibility of the customer to arrange to collect the item from the depot or to arrange re-delivery with the carrier. Further information regarding Delivery can be read at our Terms & Conditions.


Items returned and received in their original condition and packaging within 14 days of delivery will be accepted for exchange or refund subject to a 20% restocking fee. You will be responsible for the shipping costs incurred in returning the goods and should ensure the items are adequately insured while in transit to us. You should email to request to return items.

Where the goods are being returned because they are faulty or are not the goods that were ordered then, subject to the goods being returned in re-saleable condition, Twistfix will refund the cost of return shipping. Further information regarding Returns can be read at our Terms & Conditions.