The Simpson HUC46TF HUCTF Top-Flange Concealed-Flange Joist Hanger is a heavy-duty hybrid connector engineered for 4x6 nominal joist applications where a clean, concealed top-flange profile is required. Built by Simpson Strong-Tie, this hanger merges the load-carrying strengths of a face-mount design with the installation flexibility of a top-mount approach, making it a purpose-built solution for end-of-wall and corner framing connections. Two concealed flanges keep the top-flange profile hidden within the framing, while face-nailing capability ensures a secure, structural attachment to the member. With 12-gauge steel construction and a G90 zinc galvanized finish, the HUCTF series is tested, load rated, and code compliant for confident use in structural framing applications.

Key Features

• Hybrid face-mount and top-mount design - combines the structural performance of a face-mount hanger with the concealed-flange profile of a top-mount hanger, giving builders a single connector that handles both installation priorities without compromise.
• Two concealed top flanges - flanges are hidden within the framing assembly, supporting cleaner aesthetics and enabling use in end-of-wall or corner installations where exposed flanges are not acceptable.
• Face-nailing attachment - allows the hanger to be securely fastened directly to the framing member, delivering a reliable structural connection without relying solely on top-flange engagement.
• 12-gauge steel construction - heavy-gauge steel provides the rigidity and load capacity needed for demanding structural joist and beam connections in residential and commercial framing.
• G90 zinc galvanized coating - the corrosion-resistant finish helps extend the service life of the connector in moisture-exposed framing environments, reducing long-term maintenance concerns.
• Slope adjustability up to 45 deg. - the hanger accommodates sloped framing conditions up to a maximum of 45 deg., broadening its usefulness across varied roof and floor framing applications.
• Tested, load rated, and code compliant - HUCTF-series hangers carry verified load ratings and meet applicable code standards, giving contractors and inspectors the documentation and confidence they need on the job.
• Rough beam sizes available by special order - beyond the nominal 4x6 size, the design can accommodate rough beam dimensions, expanding application flexibility for non-standard framing members.

Why This Product

• One connector for two installation methods - the hybrid face-mount and top-mount design eliminates the need to source two separate hangers for corner or end-of-wall conditions, simplifying procurement and reducing the chance of using the wrong connector on site.
• Purpose-built for concealed-flange applications - the two concealed top flanges make this hanger the right choice when standard exposed-flange joist hangers cannot be used, particularly in corner framing and end-of-wall connections for 4x6 members.
• Corrosion-resistant finish supports long-term performance - the G90 zinc galvanized coating is a recognized standard for corrosion resistance in structural connectors, helping the hanger maintain its integrity in conditions where moisture exposure is a concern.
• Code-compliant and load rated for structural confidence - because the HUCTF series is independently tested and carries verified load ratings, it supports smoother inspections and gives builders, engineers, and building officials a reliable basis for approval.

Specifications

• Model Number: HUC46TF
• Nominal Joist / Member Size: 4x6
• Steel Gauge: 12-gauge
• W (Width): 3 9/16 in.
• H (Height): 5 3/8 in.
• B (Seat Width): 2 1/2 in.
• TF (Top Flange): 2 1/2 in.
• Coating / Finish: Zinc Galvanized, G90
• Maximum Slope: 45 deg.
• Skew Options: None
• Country of Origin: United States

Approved Applications

• End-of-wall joist connections requiring a concealed top-flange profile
• Corner framing installations where standard face-mount hangers cannot be used
• Structural connections for 4x6 nominal joist or beam members
• Applications requiring slope adjustments up to a maximum of 45 deg.

Installation Fasteners

The HUC46TF installs with the following nails (fasteners not included unless otherwise noted):

• Header: (10) 0.