The Simpson Outdoor Accents Adjustable Post Cap for 4x Lumber by Simpson is engineered to create a secure, reliable connection between a beam and a post in both new framing projects and retrofit installations. Constructed from 18-gauge steel with a ZMAX galvanized base and a black powder-coat topcoat, this post cap delivers durable corrosion resistance alongside a clean, decorative appearance that suits exposed outdoor structural assemblies.

Key Features

• Secures beam to post - provides a dedicated, purpose-built connection point that keeps beam-to-post assemblies properly aligned and structurally sound
• Suitable for new builds and retrofit projects - flexible design means it can be integrated into fresh framing or added to an existing post-and-beam structure without starting over
• Load rated when installed in pairs - using two connectors, one on each side of the assembly, unlocks rated load values so you have verified performance data to work from
• Maximum fastening option for increased loads - accommodates a full nailing and fastening pattern when higher load demands require it, giving installers a clear upgrade path
• For use with nominal 4x lumber - sized precisely for standard 4x members, ensuring a flush, consistent fit without shimming or modification
• 18-gauge steel construction - provides the structural rigidity needed for outdoor post cap applications while keeping the connector lightweight and easy to handle during installation
• ZMAX galvanized with black powder-coat finish - the layered corrosion protection is well suited for outdoor environments, and the black finish adds a polished, intentional look to visible structural connections
• 6-1/2 in. length - a consistent overall length that accommodates standard beam depths on nominal 4x posts without cutting or field modification

Why This Product

• Built-in versatility for new construction and retrofits - unlike connectors designed only for rough framing, the AC4PC works equally well on existing structures, making it a practical choice when upgrading or repairing an outdoor post-and-beam assembly
• Dual nailing patterns let you match the connector to the load - with both minimum and maximum fastening options available, you can install for lighter-duty applications or step up to the full fastener count when a project calls for greater capacity, without switching to a different product
• Corrosion resistance with a finished appearance - the combination of ZMAX galvanization and black powder coating means this connector holds up in outdoor conditions while looking intentional rather than purely utilitarian, which matters on pergolas, covered patios, and other visible structural work
• Made in the United States from 18-gauge steel - domestic production and consistent material gauge support predictable quality and dimensional accuracy across connectors, which is especially important when installing in pairs for load-rated applications

Specifications

• Model Number: AC4PC
• Member Size: 4x
• Length: 6-1/2 in.
• Width: 3-9/16 in.
• Gauge: 18
• Coating: ZMAX
• Finish: ZMAX Galvanized with Black Powder Coat
• Country of Origin: United States

Approved Applications

• Beam-to-post connections in new construction framing
• Retrofit installations on existing post-and-beam structures
• Outdoor structural connections requiring corrosion-resistant hardware
• Applications requiring paired post caps for load-rated performance

Frequently Asked Questions

What lumber size is the AC4PC designed for?

The AC4PC is designed for use with nominal 4x lumber.

Does the AC4PC need to be installed in pairs to achieve a load rating?

Yes, the AC4PC is load rated when installed in pairs. Installing two connectors - one on each side of the post and beam assembly - is required to achieve rated load values.

What fasteners are recommended for maximum load installation?

For maximum loads, install with (14) #10 x 1-1/2 in. Outdoor Accents Connector screws per connector. Fasteners are sold separately (Model: SD10112DBB).

What makes the AC4PC suitable for outdoor use?

The AC4PC features ZMAX galvanization combined with a black powder-coat finish, providing enhanced corrosion resistance that makes it well suited for outdoor structural applications.

Related Products

• SD10112DBB - #10 x 1-1/2 in. Outdoor Accents Connector Screws (sold separately, required for maximum load installation)