The Simpson 1/4 in. x 3/4 in. Zinc Nailon Pin-Drive Anchor is a light-duty mechanical fastener from Simpson engineered for reliable performance under static loads. The anchor pairs a zinc Nailon body with a Type 304 stainless-steel pin, delivering a corrosion-resistant fastening solution that installs quickly and securely into concrete, grouted CMU, hollow CMU, and brick. Specifiers and contractors trust Simpson mechanical anchors for their consistent performance across demanding structural applications, making this pin-drive anchor a practical choice for light-duty fastening tasks where speed, security, and dependability matter.

Key Features

• Tamper-resistant pin and head configuration - once set, the anchor resists removal or tampering, adding a layer of security to finished installations
• Mushroom head design - provides a broad bearing surface that seats flush and distributes load evenly, reducing the risk of pull-through
• Type 304 stainless-steel pin - offers solid corrosion resistance, making this anchor suitable for applications where moisture or environmental exposure is a concern
• Zinc Nailon anchor body - purpose-built for light-duty static load applications, keeping costs low without sacrificing installation reliability
• Hammer-drive installation - simply position in a pre-drilled 1/4 in. hole and strike the head to expand and lock the anchor in place, reducing installation time on the job
• Compatible with multiple base materials - approved for use in concrete, grouted CMU, hollow CMU, and brick, giving contractors flexibility across a wide range of substrates

Why This Product

• Built-in tamper resistance at no added complexity - the pin and head geometry actively resists tampering once the anchor is driven, making it well-suited for installations that need to stay put without additional hardware
• Corrosion-resistant construction for longer service life - the Type 304 stainless-steel pin helps the anchor hold up in environments where a standard carbon-steel fastener might degrade over time
• Fast, tool-minimal installation - pin-drive expansion requires only a hammer and a pre-drilled hole, allowing crews to complete light-duty concrete and masonry fastening tasks efficiently with minimal setup
• Versatile base material compatibility - support for concrete, grouted CMU, hollow CMU, and brick means one anchor choice covers a broad range of common masonry substrates, simplifying procurement and jobsite inventory

Specifications

• Manufacturer: Simpson Strong-Tie
• MPN: ZN25034SS
• Anchor Type: Zinc Nailon Pin-Drive Anchor
• Diameter: 1/4 in.
• Length: 3/4 in.
• Head Type: Mushroom Head
• Material: Type 304 Stainless Steel
• Finish: Type 304 Stainless Steel
• Packaging: Packs of 100 and Cartons of 500
• Country of Origin: United States

Approved Applications

• Concrete base material installations
• Grouted CMU (concrete masonry unit) applications
• Hollow CMU applications
• Brick base material installations
• Light-duty applications under static loads

Frequently Asked Questions

What base materials is the Simpson ZN25034SS Zinc Nailon anchor compatible with?

This anchor is designed for use in a variety of base materials, including concrete, grouted CMU, hollow CMU, and brick, making it a versatile choice for many light-duty fastening applications.

How is the Zinc Nailon pin-drive anchor installed?

Installation is straightforward - simply position the anchor in a pre-drilled 1/4 in. hole and strike the head with a hammer. This drives the stainless-steel pin through the anchor body, causing it to expand and lock securely in place.

What makes this anchor tamper resistant?

The unique pin and head configuration of the Zinc Nailon anchor is specifically designed to resist tampering. Once the pin is driven and the anchor is set, it cannot be easily removed or backed out, providing added security.

What type of stainless steel is used in the ZN25034SS anchor pin?

The anchor pin is manufactured from Type 304 stainless steel, which provides excellent corrosion resistance and durability, making it well-suited for applications where moisture or environmental exposure may be a concern.

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