The Simpson HUC38TF HUCTF Top-Flange Concealed-Flange Joist Hanger is a heavy-duty hybrid connector from Simpson Strong-Tie that brings together the best qualities of face-mount and top-mount hanger designs in a single structural fitting. Built for nominal 3x8 lumber, this joist hanger features two concealed flanges that tuck neatly into the framing, making it an ideal choice for end-of-wall and corner installations where exposed hardware is undesirable. Face-nailing keeps the hanger firmly anchored to the header, while the concealed top-flange profile delivers a cleaner, more finished appearance in the completed frame. Stamped from 12-gauge steel and finished with a Zinc Galvanized G90 coating, this hanger is engineered for lasting performance in structural framing applications.

Key Features

• Hybrid face-mount and top-mount design - combines the holding strength of face-nailing with the clean profile of a concealed top flange, giving installers a versatile connector suited to a wider range of framing conditions
• Two concealed flanges for end-of-wall and corner use - the hidden flange geometry keeps hardware out of sight at wall ends and corners, reducing finishing work and improving the appearance of the completed structure
• Face-nailing attachment method - allows the hanger to be securely fastened directly to the header member, creating a rigid, reliable joist-to-header connection
• 12-gauge steel construction - heavy-duty material thickness provides the structural capacity needed for load-bearing framing connections without adding unnecessary bulk
• Zinc Galvanized G90 coating - corrosion-resistant finish protects the steel over the long term, supporting dependable performance in demanding structural environments
• Slopes up to 45 deg. - built-in slope flexibility accommodates angled framing layouts, expanding the range of roof and floor framing situations where this hanger can be used
• Tested, load rated, and code compliant - HUCTF-series hangers meet recognized standards, giving builders and inspectors confidence in the connection's performance and compliance
• Rough beam sizes available by special order - the hanger is not limited strictly to standard dimensional lumber, offering flexibility for projects with non-standard member sizes

Why This Product

• One hanger, two hanger types - the hybrid face-mount and top-mount construction means this single connector handles situations that would otherwise require choosing between two different hanger styles, simplifying procurement and jobsite inventory
• Purpose-built for concealed installations - the concealed-flange design is specifically engineered for end-of-wall and corner framing connections where a standard exposed-flange hanger would be visually or structurally impractical
• Slope-ready without compromise - with a maximum slope capacity of 45 deg., this hanger accommodates angled framing assemblies while maintaining its full load-rated, code-compliant performance
• Durable G90 galvanized finish on heavy-gauge steel - the combination of 12-gauge steel and a G90 galvanized coating means this hanger is built to hold up in structural framing applications where long-term integrity is critical

Specifications

• Model Number: HUC38TF
• Nominal Joist / Member Size: 3x8
• Width - W: 2-9/16 in.
• Height - H: 7-1/8 in.
• Seat Width - B: 2-1/2 in.
• Top Flange - TF: 2-1/2 in.
• Steel Gauge: 12-gauge
• Coating / Finish: Zinc Galvanized, G90
• Maximum Slope: 45 deg.
• Skew Options: None available
• Country of Origin: United States

Approved Applications

• End-of-wall framing connections requiring a concealed top-flange profile
• Corner framing installations where exposed flanges are undesirable
• Structural joist-to-header connections using nominal 3x8 lumber