The Simpson Easy-Set Pin-Drive Expansion Anchor is a carbon steel anchor engineered for medium- and heavy-duty fastening applications into concrete, concrete masonry unit (CMU), and brick. Finished in a yellow-zinc dichromate plating, this pin-drive anchor delivers reliable holding power by expanding against the base material to form a secure, load-bearing connection. An integrated nut and washer keep all components together from the start, streamlining installation on demanding masonry and concrete fastening jobs.

Key Features

• Integrated nut and washer - keeps all parts together in one assembly so nothing gets lost on the job site and installation stays efficient.
• Pin-drive expansion mechanism - anchors into concrete by expanding against the base material, creating a strong, reliable connection suited for medium- and heavy-duty loads.
• Compatible with concrete, CMU, and brick - works across a range of common masonry base materials, giving you flexibility on mixed-substrate projects.
• Yellow-zinc dichromate plated carbon steel construction - provides a corrosion-resistant finish on a tough carbon steel body, supporting durability in concrete fastening environments.
• Pin-drive installation with a 9/16 in. wrench - straightforward setting process using standard tools, reducing installation time on production or repetitive fastening tasks.
• Caution: hole sizing is critical - oversized holes in the base material will make it difficult to set the anchor and will reduce the anchor's load capacity, so always use the correct 3/8 in. drill bit for consistent performance.

Why This Product

• All-in-one hardware design - the integrated nut and washer eliminate the need to source or manage separate components, saving setup time and reducing the chance of missing parts during concrete fastening work.
• Versatile across masonry base materials - rated for use in poured concrete, CMU, and brick, this expansion anchor handles a broad range of structural and masonry fastening applications without requiring a different anchor for each substrate.
• Expansion-based holding power - the pin-drive expansion design increases overall connection strength in concrete and masonry, making it a dependable choice where load-bearing performance matters on medium- and heavy-duty projects.
• Trusted Simpson engineering - designed by Simpson, a brand with a long-standing focus on structural connection products, giving contractors and builders confidence in the anchor's performance on concrete fastening applications.

Specifications

• MPN: EZAC37238
• Brand: Simpson Strong-Tie
• Material: Carbon Steel
• Coating / Finish: Yellow-Zinc Dichromate Plated
• Diameter: 3/8 in.
• Length: 2-3/8 in.
• Thread Length: 1 in.
• Drill Bit Diameter: 3/8 in.
• Min. Fixture Hole: 7/16 in.
• Wrench Size: 9/16 in.
• Packaging: Packs of 50 and Cartons of 250

Approved Applications

• Medium- and heavy-duty fastening into poured concrete
• Fastening into concrete masonry unit (CMU)
• Fastening into brick base materials

Frequently Asked Questions

What size drill bit is required to install the EZAC37238 anchor?

The EZAC37238 requires a 3/8 in. drill bit to prepare the hole in the base material. Using the correct bit size is critical - oversized holes will make it difficult to set the anchor and will reduce the anchor's load capacity.

What base materials is this anchor rated for?

The EZAC Easy-Set anchor provides holding power in concrete base materials including poured concrete, concrete masonry unit (CMU), and brick.

What wrench size is needed to install this anchor?

A 9/16 in. wrench is required to tighten the integrated nut during installation of the EZAC37238 anchor.

Does this anchor include a nut and washer?

Yes. The EZAC37238 features an integrated nut and washer, which keeps all parts together and simplifies the installation process by eliminating the need to source separate hardware.

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