The Simpson 1/4 in. x 1 in. Mushroom Head Crimp Drive Anchor 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 and eliminates the need for a secondary tightening procedure, reducing installation steps and overall labor time. Built from carbon steel with a zinc-plated finish, this anchor supports a range of fastening tasks including attaching wood or light-gauge steel, securing concrete formwork, and hanging overhead support for sprinkler pipes or suspended ceiling panels.

Key Features

• Unique curved shaft design - the preformed curvature acts as a built-in expansion mechanism, providing secure placement in concrete and grout-filled block without extra steps.
• No secondary tightening required - the anchor locks in place upon installation, cutting down labor time and simplifying the fastening process on any job site.
• Mushroom head design - resists removal by standard tools, delivering a tamper-proof fastening solution for applications where unauthorized removal is a concern.
• Zinc-plated carbon steel construction - the corrosion-resistant coating helps protect the anchor in typical interior construction environments, supporting long-term holding performance.

Why This Product

• Faster installation, fewer tools - because the curved shaft eliminates the need for a secondary tightening procedure, crews can drive and move on without extra hardware or additional steps slowing them down.
• Versatile across common construction applications - engineered for concrete and grout-filled block, this crimp drive anchor handles fastening wood or light-gauge steel, attaching formwork, and supporting overhead installations like sprinkler pipes and ceiling panels.
• Built-in tamper resistance - the mushroom head style prevents unauthorized removal once the anchor is set, making it a practical choice for installations where security and permanence matter.
• Reliable corrosion protection - the zinc-plated finish over carbon steel provides a durable, corrosion-resistant surface suited for the demands of everyday interior concrete fastening work.

Specifications

• Manufacturer Part Number (MPN): CD25100M
• Brand: Simpson Strong-Tie
• Head Type: Mushroom Head
• Size: 1/4 in. x 1 in.
• 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
• Installing suspended ceiling panels

Frequently Asked Questions

What base materials are the Simpson Strong-Tie CD25100M Crimp Drive anchors designed for?

The CD25100M Crimp Drive anchor is designed for use in concrete and grout-filled block, making it suitable for a wide range of structural and construction fastening applications.

Does the CD25100M require a secondary tightening procedure after installation?

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

Why does the mushroom head style make the CD25100M a tamper-proof solution?

The mushroom head design does not accommodate standard removal tools, which prevents unauthorized removal and provides a secure, tamper-proof fastening result once the anchor is driven into place.

What material and finish are used on the CD25100M anchor?

The CD25100M is manufactured from carbon steel with a zinc-plated finish, which provides a corrosion-resistant coating suitable for typical interior concrete and grout-filled block installations.

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