The Simpson 1/4 in. x 2-1/2 in. Countersunk Head Crimp Drive Anchor is an easy-to-install expansion anchor engineered for use in concrete and grout-filled block. Manufactured by Simpson from carbon steel with a zinc-plated finish, this anchor features a preformed curvature along the shaft that acts as a built-in expansion mechanism, securing the anchor firmly in place without any secondary tightening procedure. The countersunk head sits flush with or below the fastened surface, making it well suited for applications where a smooth, unobstructed finish is required - from fastening wood or light-gauge steel to hanging overhead support for sprinkler pipes and installing suspended ceiling panels.

Key Features

• Unique curved shaft design - the preformed curvature creates a reliable expansion mechanism that locks the anchor securely in place upon installation, reducing the risk of loosening over time.
• No secondary tightening required - the built-in expansion action speeds up anchor installation and simplifies the overall workflow, saving labor time on the job site.
• Countersunk head for a zero-profile solution - the head sits flush with or recessed below the surface, keeping the finished face clean and unobstructed for applications where clearance matters.
• Zinc-plated carbon steel construction - the zinc-plated finish provides a layer of corrosion resistance, helping the anchor hold up in demanding concrete and masonry environments.

Why This Product

• Truly tool-simple installation - because the curved shaft eliminates the need for a separate tightening step, contractors and installers can drive and finish each anchor in a single operation, keeping projects moving efficiently.
• Versatile across common structural and finishing tasks - one anchor design handles fastening wood or light-gauge steel to concrete, attaching concrete formwork, and supporting overhead loads like sprinkler pipes and suspended ceiling panels, reducing the need to stock multiple anchor types.
• Flush-finished surface with no protruding hardware - the countersunk head delivers a zero-profile result that is especially practical for ceiling panel installations and any application where exposed fastener heads would interfere with fit or appearance.
• Reliable holding power in concrete and grout-filled block - the expansion mechanism is engineered specifically for these base materials, giving installers confidence that the anchor will perform as intended across a wide range of light construction and general anchoring applications.

Specifications

• Manufacturer: Simpson Strong-Tie
• MPN: CD25212C
• Size: 1/4 in. x 2-1/2 in.
• Head Type: Countersunk 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
• Installing suspended ceiling panels
• General anchoring in concrete and grout-filled masonry block

Frequently Asked Questions

What base materials is the Simpson CD25212C Crimp Drive anchor designed for?

The Simpson Strong-Tie Crimp Drive anchor is designed for use in concrete and grout-filled block, making it suitable for a wide range of structural and light construction anchoring tasks.

Does this anchor require tightening after installation?

No. The preformed curvature along the shaft acts as a built-in expansion mechanism that secures the anchor in place upon installation, eliminating the need for any secondary tightening procedure.

What is the head style of the CD25212C, and what advantage does it provide?

The CD25212C features a countersunk head, which provides a zero-profile solution. This means the head sits flush with or below the surface of the material being fastened, making it ideal for applications where a smooth, unobstructed surface is required.

What material and coating are used on this anchor?

The Simpson CD25212C is manufactured from carbon steel with a zinc-plated finish, which provides a level of corrosion resistance suitable for the anchor's intended concrete and masonry applications.

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