Mechanical Ties Expanding Brass

Price incl. VAT
(239 items in stock)

Mechanical wall ties for cavity wall tie replacement. This mechanical tie has an expanding brass shell mechanism at each end of an Austenitic Stainless Steel bar.

The expanding wall tie features a part-threaded nut which, when turned, rotates the bar, forcing open the brass shell up conical ramps to grip the remote masonry leaf. At a factory set torque level the bar taps a thread in the remainder of the nut to force it down the bar, expanding the near leaf to grip the wall.

These mechanically expanding wall ties are suitable for all wall tie replacement applications save for use in perforated bricks or in friable blocks having a compressive strength of less than 7N/mm2 (Ref: BRE Digest 329 Decision Tree).

The brass expanders are part of our exclusive Platinum® range of wall ties, which are packed in boxes of 150 units and come with a FREE setting tool. Wall tie lengths indicated below are based on conventional cavity brick wall construc­tion.­  You will need 10mm SDS drill bits of appropriate length and a torque controlled screw driver / drill to fit these expanding mechanical wall ties

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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.


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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.