The Simpson Heli-Tie 1/4 in. x 40 in. Helical Stitching Tie is a professional masonry repair solution engineered for the preservation and structural restoration of damaged brick and masonry structures. Grouted directly into existing mortar joints, this helical tie repairs cracks and increases wall strength with minimum disturbance to the surrounding structure. Constructed from Type 304 stainless steel with radial fins formed via a cold rolling process, the Heli-Tie delivers enhanced tensile strength and lasting durability in demanding masonry repair and crack stitching applications.

Key Features

• Helical design distributes loads uniformly over a large surface area - reduces stress concentration at the repair point, producing a stronger, more reliable bond across the masonry joint.
• Installs into the mortar joint - provides an inconspicuous repair that preserves the original appearance of the structure, making it well suited for historic and architectural masonry restoration.
• Type 304 stainless steel construction - offers superior corrosion resistance compared to mild steel reinforcement, supporting long-term performance in moisture-exposed and outdoor masonry environments.
• Consistent, uniform helix configuration - ensures predictable load transfer and installation behavior across every tie, reducing variability on the job site.
• Batch number printed on each tie - simplifies quality control by enabling straightforward identification and inspection of individual ties during and after installation.

Why This Product

• Minimally invasive crack repair - because the tie installs directly into existing mortar joints, structural stitching is achieved without major reconstruction, keeping project disruption and material removal to a minimum.
• Built for long-term corrosion resistance - Type 304 stainless steel resists degradation from moisture and environmental exposure far more effectively than mild steel alternatives, helping protect the repair over the life of the structure.
• Appearance-preserving restoration - the mortar-joint installation method keeps the repair hidden from view, making this helical stitching tie a practical choice wherever maintaining the original look of a brick or masonry wall is a priority.
• Traceable for quality assurance - the batch number printed on every tie supports documentation and inspection requirements, providing added confidence for contractors and project managers working on structural masonry repair.

Specifications

• Manufacturer Part Number (MPN): HELIST254000
• Brand: Simpson Strong-Tie
• Material: Type 304 Stainless Steel
• Finish: Type 304 Stainless Steel
• Diameter: 1/4 in.
• Length: 40 in.
• Packaging: Packs of 10 and Cartons of 50
• Country of Origin: United Kingdom

Approved Applications

• Repair and preservation of damaged brick and masonry structures
• Crack repair in existing masonry joints
• Increasing structural strength of masonry walls with minimum disturbance
• Inconspicuous structural repair where maintaining the original appearance of the structure is a priority

Frequently Asked Questions

How does the Heli-Tie helical stitching tie work?

The Heli-Tie is grouted directly into existing masonry joints. Its helical design distributes loads uniformly over a large surface area, repairing cracks and increasing the structural strength of the masonry with minimum disturbance to the surrounding structure.

Why is Type 304 stainless steel used for the Heli-Tie?

Type 304 stainless steel offers superior corrosion resistance compared to mild steel reinforcement, making it a more durable long-term solution for masonry repair applications where moisture and environmental exposure are concerns.

Will the Heli-Tie affect the appearance of my masonry structure after installation?

No. The Heli-Tie is designed to install into the mortar joint, providing an inconspicuous repair that preserves the original appearance of the structure.

How can individual ties be identified for inspection purposes?

Each Heli-Tie has a batch number printed directly on it, allowing for easy identification and inspection on the job site to support quality control and documentation requirements.