and Other Helix Fixings Products
Helix Stainless steel spiro shear ties
Spiro-Shear Stainless Steel Ties are supplied fully or half sleeved in plastic, for use as movement joint ties.
Fully sleeved Spiro-Shear ties allow in-plane movement whilst maintaining a shear restraint resistance. They are suitable for use in masonry expansion joint locations. The ties are installed symetically about the movement joint, both ends being able to slide.
Half sleeved Spiro-Shear ties allow in plane movement whilst maintaining a shear and restraint resistance. They are suitable for use in masonry expansion and contraction joint locations for similar conditions to the fully sleeved tie but allow fixing one end of the tie to suit a particular design preference.
The unsleeved end of the tie is fixed into one side of the masonry by bedding into the new work or resin-fixing into existing structures. The sleeved end is then bedded into the masonry on the opposite side of the joint, so allowing the tie to slide within the plastic sleeve.