The Simpson 1/4 in. x 1 1/2 in. Mushroom Head Crimp Drive Anchor from Simpson is an easy-to-install expansion anchor engineered for secure fastening in concrete and grout-filled block. A preformed curvature along the shaft acts as a built-in expansion mechanism that locks the anchor firmly in place upon installation, removing the need for a secondary tightening procedure and keeping jobsite workflows moving efficiently. Available in five head styles to suit a range of fastening tasks - from attaching concrete formwork to hanging overhead supports for sprinkler pipes and suspended ceiling panels - the mushroom head configuration of this model delivers a low-profile, tamper-resistant hold where finished security matters most.

Key Features

• Unique curved shaft design - creates a reliable expansion mechanism that locks the anchor securely in place without additional tools or steps after installation
• No secondary tightening required - the preformed curvature does the work automatically, reducing installation time and labor on concrete and grout-filled block applications
• Mushroom head configuration - provides a tamper-proof solution by resisting removal with standard tools, making it well-suited for permanent or security-sensitive fastening
• Zinc-plated carbon steel construction - the zinc plated finish adds a protective layer over durable carbon steel, helping the anchor hold up in demanding concrete fastening environments
• 1/4 in. x 1 1/2 in. sizing - a 1/4 in. drill bit diameter and compact profile make this anchor a practical fit for light-gauge steel connections, formwork attachment, and overhead support installations

Why This Product

• Faster installations with no extra steps - the self-securing curved shaft eliminates the secondary tightening procedure that traditional expansion anchors require, cutting down on installation time for concrete and grout-filled block projects
• Built-in tamper resistance - the mushroom head design prevents removal with common tools once set, making this anchor a dependable choice for overhead support, suspended ceiling panels, and any application where long-term security is a priority
• Versatile across multiple applications - one anchor design handles fastening wood or light-gauge steel, attaching concrete formwork, supporting sprinkler pipe hangers, and securing suspended ceiling systems, reducing the need to stock multiple fastener types
• Trusted carbon steel backbone with zinc plated protection - Simpson engineering combines a durable carbon steel body with a zinc plated finish, delivering a corrosion-resistant concrete anchor built to perform in structural fastening conditions

Specifications

• MPN: CD25112M
• Brand: Simpson Strong-Tie
• Size: 1/4 in. x 1-1/2 in.
• Head Type: Mushroom Head
• Material: Carbon Steel
• Coating: Zinc Plated
• Finish: Zinc Plated
• Packaging: Packs of 100 and Cartons of 1600

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

Frequently Asked Questions

What base materials is the Simpson CD25112M Crimp Drive Anchor designed for?

The Simpson Strong-Tie CD25112M is specifically designed for use in concrete and grout-filled block, providing a secure and reliable hold in these base materials.

Why does the Crimp Drive Anchor not require a secondary tightening procedure?

The anchor features a unique pre-formed curvature along its shaft. This curved shaft design acts as a built-in expansion mechanism that secures the anchor in place upon installation, eliminating the need for any additional tightening steps.

What makes the mushroom head style a tamper-proof solution?

The low-profile mushroom head design does not accommodate standard removal tools once installed, making it resistant to tampering. This makes the CD25112M well-suited for applications where security and permanent fastening are a priority.

What is the anchor made of, and does it have a protective coating?

The Simpson CD25112M Crimp Drive Anchor is constructed from carbon steel and features a zinc-plated finish, which provides a layer of corrosion resistance for added durability in typical installation environments.