The Simpson Easy-Set 1/2 in. x 4-3/4 in. Pin-Drive Expansion Anchor is a carbon steel fastening solution from Simpson engineered for medium- and heavy-duty applications into concrete base materials, including poured concrete, concrete masonry unit (CMU), and brick. The pin-drive expansion mechanism delivers reliable holding power by expanding within the base material, while the integrated nut and washer design simplifies the installation process and helps keep all components together from start to finish.

Key Features

• Integrated nut and washer - keeps all components together during installation, reducing the risk of lost parts and speeding up the fastening process on the job site.
• Expansion-based anchoring mechanism - locks the anchor firmly in place within the base material, providing a strong and dependable connection for structural and non-structural masonry applications.
• Compatible with concrete, CMU, and brick - gives contractors and builders flexibility to use a single anchor type across a range of common masonry base materials.
• Yellow-Zinc Dichromate Plated carbon steel construction - provides a corrosion-resistant finish that helps extend the service life of the anchor in typical concrete fastening environments.
• Pin-drive installation method - allows for efficient setting in medium- and heavy-duty applications, reducing installation time compared to more complex anchoring systems.
• Caution: Use the correct 1/2 in. drill bit - oversized holes in the base material will make it difficult to set the anchor properly and will reduce the anchor's load capacity, so precise hole sizing is critical to performance.

Why This Product

• Engineered for demanding masonry work - the expansion anchoring design is rated for both medium- and heavy-duty fastening into concrete, CMU, and brick, making it a practical choice for structural connections that require consistent, reliable holding power.
• Simplified installation from the start - the integrated nut and washer eliminate the need to manage separate hardware components, reducing prep time and the chance of misplaced parts during installation.
• A trusted name in structural fastening - Simpson is a recognized manufacturer in the construction fastener industry, and the Easy-Set anchor line reflects the engineering attention that professional contractors expect from the brand.
• Increases the overall strength of masonry assemblies - by expanding within the base material to create a secure mechanical connection, this pin-drive anchor helps reinforce masonry projects where a strong, stable attachment point is essential.

Specifications

• Manufacturer: Simpson Strong-Tie
• MPN: EZAC50434
• Diameter: 1/2 in.
• Length: 4-3/4 in.
• Thread Length: 1-1/2 in.
• Drill Bit Diameter: 1/2 in.
• Min. Fixture Hole: 9/16 in.
• Wrench Size: 3/4 in.
• Material: Carbon Steel
• Coating/Finish: Yellow-Zinc Dichromate Plated
• Packaging: Packs of 25 and Cartons of 100

Approved Applications

• Medium-duty fastening into concrete
• Heavy-duty fastening into concrete
• Fastening into concrete masonry unit (CMU)
• Fastening into brick base materials
• Structural connections requiring expansion-style anchoring in masonry assemblies

Frequently Asked Questions

What base materials is the Simpson EZAC50434 anchor compatible with?

The EZAC50434 pin-drive expansion anchor is designed to provide holding power in concrete base materials including standard poured concrete, concrete masonry unit (CMU), and brick.

What size drill bit is required to install the EZAC50434 anchor?

A 1/2 in. drill bit is required to bore the hole in the base material. The minimum fixture hole size needed is 9/16 in., and a 3/4 in. wrench is used for installation.

Does the EZAC50434 anchor include an integrated nut and washer?

Yes. The EZAC Easy-Set anchor includes an integrated nut and washer to help keep all parts together and simplify the installation process.

Why is it important to avoid oversized holes when installing the EZAC50434?

Oversized holes in the base material will make it difficult to properly set the anchor and will reduce the anchor's load capacity. Always use the specified 1/2 in. drill bit to ensure correct hole sizing and optimal performance.

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