The Simpson 1/4 in. Duplex Head Crimp Drive Anchor from Simpson is an easy-to-install expansion anchor engineered for use in concrete and grout-filled block. The preformed curvature along the shaft creates an expansion mechanism that secures the anchor in place automatically, eliminating the need for a secondary tightening procedure and streamlining the overall fastening process. The duplex head style makes this carbon steel anchor a practical choice for temporary applications - such as concrete formwork attachment - where straightforward removal is essential, as well as for permanent tasks like fastening wood or light-gauge steel, hanging sprinkler pipe supports, and securing suspended ceiling panels.

Key Features

• Unique curved shaft design - creates a reliable expansion mechanism that holds the anchor securely in concrete and grout-filled block without additional adjustment
• No secondary tightening required - the self-securing expansion action speeds up installation and reduces labor time on the jobsite
• Duplex head style - the double-headed design allows for easy anchor removal, making it well suited for temporary fastening applications like concrete formwork
• Zinc-plated carbon steel construction - provides a level of corrosion resistance appropriate for the anchor's intended concrete and masonry applications
• 1/4 in. size - a versatile diameter compatible with a wide range of fastening tasks including overhead support, light-gauge steel attachment, and suspended ceiling installations

Why This Product

• Faster installation without compromise - because the curved shaft expands on its own during driving, there is no secondary tightening step, meaning crews can move through anchor installations more quickly without sacrificing holding performance
• Genuinely versatile across multiple applications - a single anchor design handles fastening wood or light-gauge steel to concrete, attaching concrete formwork, supporting sprinkler pipes, and suspending ceiling panels, reducing the need to stock multiple anchor types
• Built for temporary and permanent use alike - the duplex head allows easy removal when the application calls for it, such as stripping concrete formwork, while the same anchor series works equally well in long-term structural fastening scenarios
• Trusted Simpson engineering - Simpson is a recognized name in structural fastening, and the Crimp Drive anchor reflects that with a purposefully engineered shaft profile designed to deliver consistent, secure placement in concrete and grout-filled block

Specifications

• Model Number: CD25234D
• Brand: Simpson Strong-Tie
• Size: 1/4 in.
• Head Type: Duplex Head
• Material: Carbon Steel
• Coating: Zinc Plated
• Finish: Zinc Plated
• Packaging: Packs of 100 and Cartons of 500

Approved Applications

• Fastening wood or light-gauge steel to concrete and grout-filled block
• Attaching concrete formwork
• Hanging overhead support for sprinkler pipes
• Supporting suspended ceiling panels
• Temporary applications requiring easy anchor removal

Frequently Asked Questions

What substrate materials is the Simpson CD25234D Crimp Drive anchor designed for?

The Simpson CD25234D Crimp Drive anchor is designed for use in concrete and grout-filled block, making it suitable for a wide range of structural and temporary fastening applications.

Does this anchor require a secondary tightening step after installation?

No. The preformed curvature along the shaft creates an expansion mechanism that secures the anchor in place automatically, eliminating the need for any secondary tightening procedure and speeding up the installation process.

Why is the duplex head style beneficial for certain applications?

The duplex head design allows for easy removal of the anchor, making it ideal for temporary applications such as attaching concrete formwork where the anchor must be taken out after use.

What material and finish does the CD25234D anchor use?

The CD25234D anchor is constructed from carbon steel with a zinc-plated finish, which provides a level of corrosion resistance suitable for its intended concrete and grout-filled block applications.

Note: Product dimensions may differ from picture.