Wall Tie - Type 4 Housing

Designed to replace the ‘butterfly tie’ as a light duty housing tie, suitable for cavities 50–100 mm for use in the construction of houses not greater than 10 m in height.

The Wincro WT4 meets the requirements of BS EN 845-1 as a Type 4 tie and has a measured dynamic stiffness of <4.8 MN/m³, meeting the performance requirements of Building Regulations (E&W) Approved Document E as a Type A tie, therefore suitable for separating (party) walls. The ties meet the technical requirements of the NHBC and are suitable for use with all approved robust details for cavity masonry separating walls, both traditional and thin joint blockwork.

General information


Grade 1.4301 (304) stainless steel

Uniclass 2015

Pr_20_85_84_19 Cavity wall tiesPrimary


F30/214 Cavity wall ties

F30/215 Cavity wall ties used with partial fill insulation

F30/220 Wall ties

F30/24 Cavity wall ties

F30/25 Cavity wall ties used with partial fill insulation

F30/26 Wall ties

Specification data - Cavity wall ties

Product Reference



200 mm

For 50–75 mm cavities.

225 mm

For 76–100 mm cavities.

250 mm

For 101–125 mm cavities.

275 mm

For 126-150 mm cavities.




Plastic insulation retaining clip.

Standard product features


Grade 1.4301 (304) stainless steel.

Third party certifications
  • CE Marked to BS EN 845-1.
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