Thor Helical Remedial 12mm Drive Pins

Thor Helical Remedial 12mm Drive Pins

When a wall needs reliable lateral restraint or solid wall junction tying, you want a fixing that’s strong, repeatable, and quick to install. Thor Helical Remedial 12mm Drive Pins are engineered as a dry-pinning structural tie system designed to corkscrew into masonry when driven into an undersized pilot bore, delivering outstanding resistance to axial and shear loads.

They’re a popular choice for professional remedial work because you can achieve structural restraint without bonding agents, wet grout, or prolonged curing time.

Where Thor Helical Remedial 12mm Drive Pins Are Used

These 12mm drive pins are commonly used for:

• Tying solid façade walls at wall junctions (corners and party walls)
• Lateral restraint applications where a robust mechanical tie is required
• Remedial strengthening in brick, block, limestone and concrete substrates

If you’re unsure whether drive pins are the correct solution for your specific wall type and loading, it’s always best to confirm the design with a competent professional and follow Thor Helical guidance for spacing and embedment.

Why Choose Thor Helical Remedial 12mm Drive Pins system?

The long-series 12mm design has twice the mass of other self-tapping helical wall ties of similar design/function, making it well suited to demanding restraint work. Once installed, the helical form provides a strong mechanical “key” within the masonry.

Because it’s a dry-pinning method, installation is typically quicker and cleaner than systems that require 8mm helical bars with proprietary cement grout, often meaning less disturbance to the building and substantial labour savings on site.

Installation Overview

In simple terms, the system is designed to be fast and repeatable:

• Drill undersized pilot holes (as per system requirements)
• Set out at 450mm centres
• Drive the ties in using the correct drive tool

This approach avoids wet trades, helps keep the work area cleaner, and speeds up progress, especially valuable on occupied buildings or time-sensitive remedial jobs.