The Simpson 1/4 in. x 3/4 in. Zinc Nailon Pin-Drive Anchor from Simpson is a reliable, low-cost mechanical anchor built for light-duty fastening under static loads. The mushroom head and carbon steel pin work together to deliver a straightforward hammer-drive installation - no specialty tools required - making it a practical choice for anchoring into concrete, grouted CMU, hollow CMU, and brick. Trusted by specifiers and contractors, the Zinc Nailon anchor is designed to install securely into a variety of common masonry base materials where a dependable, tamper-resistant hold is needed.

Key Features

• Pin and head configuration makes this anchor tamper resistant - once set, the anchor is designed to resist unauthorized removal, adding security to finished installations.
• Mushroom head design - provides a low-profile, flush-style finish that sits cleanly against the surface after driving.
• Carbon steel pin - delivers the driving strength needed to expand the anchor body firmly within the base material using a standard hammer.
• Zinc Nailon anchor construction - purpose-built for light-duty static load applications where a cost-effective masonry fastener is the right call.
• Compatible with multiple base materials - approved for use in concrete, grouted CMU, hollow CMU, and brick, giving contractors flexibility across common masonry substrates.

Why This Product

• No specialty tools needed for installation - the pin-drive method requires only a hammer, keeping the installation process fast and straightforward for contractors and installers on any job site.
• Tamper-resistant by design - the unique pin and head configuration makes the set anchor difficult to remove without authorization, making it well-suited for applications where security matters.
• Versatile masonry compatibility - a single anchor size works across concrete, grouted and hollow CMU, and brick, reducing the need to stock multiple fastener types for common masonry work.
• Cost-effective for light-duty applications - the Zinc Nailon anchor is specifically engineered as a low-cost solution for static load fastening, making it an efficient choice when performance requirements align with light-duty use.

Specifications

• Brand: Simpson Strong-Tie
• MPN: ZN25034
• Anchor Type: Zinc Nailon Pin-Drive Anchor
• Diameter: 1/4 in.
• Length: 3/4 in.
• Head Type: Mushroom Head
• Material: Carbon Steel
• Drive Method: Pin-Drive (hammer)
• Packaging: Packs of 100 and Cartons of 500
• Country of Origin: United States

Approved Applications

• Concrete base material
• Grouted CMU (Concrete Masonry Unit)
• Hollow CMU
• Brick
• Light-duty fastenings under static loads

Frequently Asked Questions

How is the Simpson ZN25034 Zinc Nailon anchor installed?

Installation is straightforward: simply strike the mushroom head with a hammer to drive the carbon steel pin through the anchor body. This action expands the anchor within the base material, locking it securely in place - no specialty tools are needed.

What base materials is the ZN25034 compatible with?

The ZN25034 is designed to install securely into a variety of base materials, including concrete, grouted CMU, hollow CMU, and brick, making it versatile for common masonry applications.

Is the Simpson ZN25034 suitable for overhead applications?

No. The Zinc Nailon anchor is intended for light-duty applications under static loads only and is not approved for use in overhead applications.

What makes the ZN25034 tamper resistant?

The unique pin and head configuration of the Zinc Nailon anchor is specifically designed to be tamper resistant. Once the pin is driven and the anchor is set, the mushroom head and locking mechanism make unauthorized removal difficult.

Note: Product dimensions and/or thread length may differ from picture. Please see the item description above for specifications.