The Simpson HUC46 Galvanized Face-Mount Concealed-Flange Joist Hanger is a heavy-duty structural connector engineered by Simpson for applications requiring additional strength and safety factors. This face-mount hanger secures 4x6 wood joists to wood, masonry, and concrete headers while its concealed header flanges keep hardware out of sight - delivering clean, finished visible lines in exposed framing conditions where appearance matters as much as performance.

Key Features

• Concealed header flanges - keep the hanger hidden behind the header for cleaner visible lines in exposed structural conditions
• Extra optional triangle holes - allow additional fastening points when higher load capacity is needed for demanding applications
• HUC-series hangers are tested, load rated, and code compliant - gives builders and inspectors confidence that the connection meets recognized structural standards
• Compatible with wood, masonry, and concrete headers - provides versatility across a wide range of construction types without requiring a different hanger
• Made from 14-gauge steel - delivers the heavy-duty strength required for structures with elevated safety factor demands
• Zinc Galvanized G90 coating - provides extra corrosion resistance to extend service life in demanding environments

Why This Product

• Strength meets finished appearance - the concealed-flange design handles heavy structural loads while keeping hardware visually clean, making it suitable for exposed beams and architectural framing where both performance and aesthetics are priorities
• Broad substrate compatibility - a single hanger model connects 4x6 joists to wood, masonry, or concrete headers, reducing the need to source multiple connectors across different framing conditions
• Tested and code-compliant engineering - HUC-series hangers carry verified load ratings, so contractors can specify this connector with confidence on projects where documentation and compliance are required
• Built-in flexibility for higher-load demands - the optional triangle holes let installers add fasteners where additional load capacity is needed, without switching to a different hanger series

Specifications

• MPN: HUC46
• Member Size: 4x6
• Height: 4-3/4 in.
• Width: 3-9/16 in.
• Seat Depth: 2-1/2 in.
• Gauge: 14
• Coating: Zinc Galvanized, G90
• Finish: Zinc Galvanized, G90
• Install With: (8-12) 0.162 in. x 3-1/2 in. nails in the header and (4-6) 0.148 in. x 3 in. nails in the joist (sold separately)
• Country of Origin: United States

Approved Applications

• Installing 4x6 wood joists to wood headers
• Installing 4x6 wood joists to masonry headers
• Installing 4x6 wood joists to concrete headers
• Structures requiring additional strength and safety factors
• Exposed framing conditions where concealed flanges provide cleaner finished appearance

Options

• Contact us for Configurable Options and Special orders

Frequently Asked Questions

What size joist is the HUC46 designed for?

The HUC46 is designed for a nominal 4x6 joist size, with a seat width of 3-9/16 in. to accommodate standard 4x6 lumber dimensions.

What fasteners are required to install the HUC46?

Installation requires (8-12) 0.162 in. x 3-1/2 in. nails in the header and (4-6) 0.148 in. x 3 in. nails in the joist for a proper, code-compliant installation.

What type of corrosion protection does the HUC46 have?

The HUC46 is coated with a Zinc Galvanized, G90 finish, providing extra corrosion resistance suitable for demanding structural environments.

Can the HUC46 be used with masonry or concrete headers?

Yes. The HUC46 is designed to install wood joists to wood, masonry, and concrete headers, making it versatile for a wide range of structural framing applications.

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