Simpson HELI371000A Heli-Tie 3/8 in. x 10 in. Helical Wall Tie by Simpson Strong-Tie is a stainless-steel helical wall tie engineered to anchor building façades to structural members or to stabilize brick walls. The helical design allows the tie to be driven quickly and easily into a predrilled pilot hole - or embedded into mortar joints during new construction - to create a mechanical connection between a masonry façade and its backup material. As the tie is driven, its fins undercut the masonry to deliver expansion-free anchorage that resists both tension and compression loads.

Key Features

• Installs quickly and easily - with the rotohammer in hammer mode, the tie installs faster than competitive products
• Provides an inconspicuous repair that preserves the appearance of the building; after installation, the tie is countersunk up to 1/2 in. below the surface, allowing the tie location to be patched
• Larger core diameter provides higher torsional capacity, resulting in less deflection due to "uncoiling" under load
• Fractionally sized anchor - no metric drill bits required
• Performs in concrete and masonry as well as wood and steel studs
• Required drill bit diameter: 7/32 in. or 1/4 in.
• Corrosion-resistant Type 304 stainless steel construction for long-lasting service life
• Installed using the proprietary HELITOOL37A setting tool with an SDS-plus shank rotohammer to drive and countersink the tie

Specifications

• MPN: HELI371000A
• Brand: Simpson Strong-Tie
• Diameter: 3/8 in.
• Length: 10 in.
• Material: Type 304 Stainless Steel
• Finish: Type 304 Stainless Steel
• Required Drill Bit Diameter: 7/32 in. or 1/4 in.
• Installation Tool: HELITOOL37A Heli-Tie fastener installation tool
• Packaging: Packs of 50 and Cartons of 200
• Country of Origin: GB

Approved Applications

• Anchoring building façades to structural members
• Stabilizing existing brick walls
• Connecting masonry façades to concrete and masonry backup materials
• Connecting masonry façades to wood stud backup structures
• Connecting masonry façades to steel stud backup structures
• New construction mortar joint embedment
• Retrofit and repair applications requiring inconspicuous, patchable anchoring

Frequently Asked Questions

What tool is required to install the Heli-Tie HELI371000A?

The Heli-Tie wall tie is installed using the proprietary HELITOOL37A Heli-Tie fastener installation tool paired with an SDS-plus shank rotohammer. The rotohammer is used in hammer mode to drive and countersink the tie into the predrilled pilot hole.

What drill bit size is needed to install this helical wall tie?

A 7/32 in. or 1/4 in. drill bit is required to create the pilot hole for the HELI371000A. Because the anchor is fractionally sized, no metric drill bits are needed.

How far below the surface is the Heli-Tie countersunk after installation?

After installation, the Heli-Tie is countersunk up to 1/2 in. below the masonry surface. This allows the tie location to be patched, providing an inconspicuous repair that preserves the original appearance of the building.

What backup materials is the HELI371000A compatible with?

The Heli-Tie wall tie performs in concrete and masonry as well as wood and steel studs, making it suitable for a wide range of façade anchoring and wall stabilization applications in both new construction and retrofit projects.

Note: Product dimensions may differ from picture. Please see the item description above for specifications.