Simpson CSD25112 CSD 1/4 in. x 1-1/2 in. Zinc-Plated Split-Drive Anchor by Simpson Strong-Tie is a one-piece mechanical expansion anchor engineered for secure fastening into concrete, grout-filled block, and stone. As the anchor is driven into the pre-drilled hole, its split-type expansion mechanism on the working end compresses and exerts force against the walls of the hole, creating a reliable, high-strength connection. The countersunk head sits flush with the surface, making it ideal for attaching wood or light gauge steel to concrete and grout-filled block surfaces in dry, interior, and non-corrosive environments.

Key Features

• One-piece split-drive anchor with a split-type expansion mechanism that compresses as the anchor is driven into the hole, exerting force against the hole walls for a secure hold
• Countersunk head allows for a flush, smooth surface finish when attaching materials to concrete and grout-filled block
• Can be installed in concrete, grout-filled block, and stone base materials
• Made from zinc-plated carbon steel for durability in appropriate environments
• For use in dry, interior, and non-corrosive environments only
• Requires a 1/4 in. drill bit for installation

Specifications

• Manufacturer: Simpson Strong-Tie
• MPN: CSD25112
• Diameter: 1/4 in.
• Length: 1-1/2 in.
• Head Type: Countersunk Head
• Head Diameter: 1/2 in.
• Drill Bit Diameter: 1/4 in.
• Material: Carbon Steel
• Coating: Zinc Plated
• Finish: Zinc Plated
• Packaging: Packs of 100 and Cartons of 500
• Country of Origin: Taiwan

Approved Applications

• Fastening into concrete surfaces
• Fastening into grout-filled block and grouted CMU
• Fastening into stone
• Attaching wood to concrete and grout-filled block surfaces
• Attaching light gauge steel to concrete and grout-filled block surfaces
• Dry, interior, and non-corrosive environments only

Frequently Asked Questions

What base materials is the Simpson CSD25112 Split-Drive Anchor compatible with?

The CSD25112 can be installed in concrete, grout-filled block, and stone. It is not designed for use in hollow CMU or other unsupported base materials.

What drill bit size is required to install the CSD25112 anchor?

A 1/4 in. drill bit is required to create the properly sized hole for this anchor prior to installation.

Is the Simpson CSD25112 suitable for outdoor or corrosive environments?

No. The CSD25112 is zinc-plated carbon steel and is approved for use in dry, interior, and non-corrosive environments only. It should not be used in wet, exterior, or corrosive conditions.

What is the benefit of the countersunk head on the CSD25112?

The countersunk head is designed to sit flush with or below the surface of the attached material, providing a smooth, low-profile finish - making it particularly useful when attaching wood or light gauge steel to concrete and grout-filled block surfaces.

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