HD1 heavy duty wall ties are suitable for most masonry cavity walls.  Tested as Type B (sound) and Type 1 (strength) to BS EN 845-1.  Multi drip feature prevents moisture travelling across the tie.
 
Each box also includes 50 reusable safety covers to fit onto the protruding ends of the ties.
 
Ideal for wider cavities found on stone work.
 
We also stock insulation retaining clips for these ties here.