The Simpson Concealed-Flange Heavy Face-Mount Hanger HUC5.31/9 is a heavy-duty joist hanger engineered by Simpson for structural framing applications that require additional strength and enhanced safety factors. Its concealed header flanges set it apart from standard face-mount hangers by keeping the flange hidden behind the header, delivering clean, unobtrusive lines that are well suited for exposed framing conditions where both structural performance and finished appearance matter.

Key Features

• Concealed header flanges - hide the flange behind the header for clean, refined visible lines, making this hanger a natural fit for exposed framing where aesthetics are a priority alongside structural performance.
• Heavy-duty face-mount design - mounts directly against the face of the header or beam, providing straightforward installation while meeting the demands of applications requiring additional strength and higher safety factors.
• 14 ga. (68 mil) steel construction - delivers the structural integrity needed for heavy-load framing connections, giving builders confidence in the long-term reliability of the joint.
• Galvanized finish - provides corrosion resistance that helps preserve connection integrity across a range of environmental conditions over the life of the structure.
• Configurable seat options available - certain models in the HUC line can be set up with a skewable seat or a seat that slopes as far as up to 45 deg., accommodating varied framing angles and non-standard installation conditions.

Why This Product

• Aesthetics without compromise - the concealed-flange design handles the structural load of a heavy face-mount hanger while keeping hardware out of sight, making it one of the few options that serves both architectural finish work and demanding load requirements at the same time.
• Built for high-demand framing - engineered specifically for applications where additional strength and enhanced safety factors are required, this hanger goes beyond what a standard joist hanger offers for critical structural connections.
• Versatility across framing conditions - with seat configurations that can accommodate slopes up to 45 deg. and skewed installations, this hanger adapts to a wider range of real-world framing scenarios than a fixed-geometry connector.
• Trusted Simpson engineering - produced in the United States by Simpson, a brand with a long-standing reputation in structural connector design, providing builders and engineers with a product they can specify and install with confidence.

Specifications

• Model Number: HUC5.31/9
• Description: HUC Heavy Concealed-Flange Face-Mount Joist Hanger
• Finish: Galvanized
• Material: 14 ga. (68 mil)
• Country of Origin: United States

Options

Contact us for Configurable Options and Special orders

Frequently Asked Questions

What makes the HUC5.31/9 different from a standard face-mount joist hanger?

The HUC5.31/9 features concealed header flanges, which hide the flange behind the header for cleaner visible lines. This makes it especially suitable for exposed framing conditions where appearance is important, while still delivering the heavy-duty strength of a face-mount design.

What gauge steel is used in the HUC5.31/9?

The HUC5.31/9 is fabricated from 14-gauge (68 mil) steel, providing the heavy-duty structural integrity required for applications with additional strength and safety factor demands.

Can the seat of the HUC hanger be adjusted for sloped or skewed installations?

Yes. Some models in the HUC line can be configured with a skewable seat and a seat that slopes as far as up to 45 degrees, accommodating a variety of framing angles and installation conditions.

What finish does the HUC5.31/9 have, and why does it matter?

The HUC5.31/9 comes with a galvanized finish, which provides corrosion resistance to help maintain the integrity of the connection over time in a range of environmental conditions.

Note: Product dimensions and/or nail holes may differ from picture. Please see item description and Spec Sheet for specifications.