The Simpson U46 Face-Mount Joist Hanger is a heavy-duty connector from Simpson Strong-Tie engineered for flexible joist-to-header installation in wood-framed construction. Formed from 16-gauge steel with a G90 galvanized coating, this face-mount hanger delivers the proven strength and safety that engineers and contractors depend on for residential builds and code-compliant structures alike. Whether you are framing a deck, floor system, or other structural application requiring a reliable 4x6 connection, the U46 is built to perform to the highest quality standards.

Key Features

• Speed prongs locate the hanger on the header - saves installation time by holding the hanger in position before nailing, reducing the need for extra hands or temporary fasteners.
• Flexible face-mounted joist-to-header installation - accommodates a range of field conditions, giving builders more control and versatility during framing.
• Designed for nominal 4x6 joist size - provides a purpose-fit connection that eliminates guesswork and helps ensure consistent, secure load transfer at every joint.
• Made from 16-gauge steel - delivers the structural integrity and rigidity needed for demanding load-bearing applications in wood-frame construction.
• G90 galvanized coating for extra corrosion resistance - extends service life in moisture-prone environments, making this hanger a dependable choice for both interior and exterior framing projects.

Why This Product

• Trusted engineering behind every connection - Simpson Strong-Tie connectors are engineered, tested, and manufactured to meet the rigorous standards that professional contractors and engineers specify by name on the job site.
• Speed prongs cut installation time - the built-in locating prongs grip the header so you can position the hanger accurately and drive nails without fumbling, keeping your framing work moving efficiently.
• Corrosion-resistant finish for lasting performance - the G90 galvanized coating goes beyond basic protection, making the U46 a solid choice for projects where long-term durability against moisture exposure matters.
• Versatile fit for multiple member sizes - compatibility with both 4x6 and 4x8 members means this single hanger model can serve a broader range of framing applications, reducing the need to stock multiple connector types.

Specifications

• Model Number: U46
• Gauge: 16
• Width (W): 3-9/16 in.
• Height (H): 4-7/8 in.
• Base (B): 2 in.
• Coating / Finish: Zinc Galvanized, G90
• Member Size: 4x6, 4x8
• Installation Fasteners: Install with 10d or 16d common nails in the header and 10d common nails in the joist (sold separately)
• Country of Origin: United States

Options

• Contact us for Configurable Options and Special orders
• Refer to technical bulletin for ease of ordering a Custom U hanger

Load Tables / Values / Installation

• Face-Mount Hangers - Solid Sawn Lumber (DF / SP) Tables
• Face-Mount Hangers - Solid Sawn Lumber (SPF / HF) Tables
• Face-Mount Hangers - Rough Lumber (DF / SP / SPF / HF) Tables
• Face-Mount Hangers - I-Joists, Glulam and SCL Tables

Downloads and Resources

• Face-Mount Hangers - Solid Sawn Lumber (SPF / HF) Tables
• Face-Mount Hangers - Rough Lumber (DF / SP / SPF / HF) Tables
• Face-Mount Hangers - Solid Sawn Lumber (DF / SP) Tables
• Face-Mount Hangers - I-Joists, Glulam and SCL Tables

Frequently Asked Questions

What size joist is the Simpson U46 designed for?

The U46 is designed for a nominal 4x6 joist size and is also compatible with 4x8 member sizes, making it a versatile choice for a range of wood-framed construction applications.

What fasteners should be used to install the U46 joist hanger?

Install the U46 with 10d or 16d common nails in the header and 10d common nails in the joist for proper load transfer and a secure connection.

What gauge steel is the U46 made from, and how is it protected against corrosion?

The U46 is formed from 16-gauge steel and finished with a Zinc Galvanized G90 coating, which provides extra corrosion resistance for durability in demanding environments.

What is the purpose of the speed prongs on the U46?

The speed prongs are designed to locate and hold the hanger in the correct position on the header during installation, helping to simplify placement and improve installation efficiency.

Note: Product dimensions and/or Nail or Screw holes may differ from picture. Please see item description for specifications.