Simpson 4x6 Concealed Flange Joist Hanger Skewed Left ZMAX - HSULC46Z

The Simpson Strong-Tie HSULC46Z is a heavy-duty, 45 deg.-skewed concealed flange joist hanger engineered to support 4x6 members in wood construction. Skewed left at 45 deg., this 14-gauge ZMAX-coated hanger delivers exceptional structural performance while maintaining clean, professional visible lines in exposed framing conditions. Its U-shaped design with concealed header flanges makes it an ideal solution for architectural and finish-quality framing applications where aesthetics matter as much as strength.

Key Features

• 45 deg. Skewed Left Design: Engineered specifically for left-skewed joist installations, providing precise alignment and structural integrity at angled connections.
• Concealed Header Flanges: Hides the top flange connection within the header, delivering cleaner visible lines in exposed framing conditions.
• A2 (Acute) Flange Turned In: The acute flange is turned inward to accommodate end-of-wall installation with ease.
• No Web Stiffeners Required: The hanger encapsulates the top flange of the joist, eliminating the need for web stiffeners in standard installations.
• Obround Nail Holes on Acute Side: Specially designed obround nail holes allow fasteners to be installed parallel to the joist for simplified fastening.
• Flexible Skew Tolerance: While the hanger cannot be modified, it accommodates joists skewed between 40 deg. and 50 deg., offering installation flexibility.
• Square or Bevel Cut Compatible: The joist end may be square cut or bevel cut, providing versatility during installation.
• ZMAX Coating: Features Simpson Strong-Tie's ZMAX galvanized coating for enhanced corrosion resistance in treated lumber and demanding environments.
• Made in the United States: Manufactured domestically to rigorous quality standards.

Specifications

• Model Number: HSULC46Z
• Skew Direction: Left (45 deg.)
• Gauge: 14
• Joist Size: 4 x 6
• Height: 4-3/4 in.
• Coating / Material: ZMAX
• Skew Accommodation Range: 40 deg. to 50 deg.
• Country of Origin: United States

Installation

Proper installation of the HSULC46Z requires the use of specified fasteners. Use #9 x 2-1/2" Strong-Drive SD Connector screws OR 0.162" x 3-1/2" nails. Fill all round and obround nail holes with the specified fasteners to achieve published table loads. Where noted, triangle holes in the joist flange may be filled for additional uplift capacity. The joist end may be square cut or bevel cut.

Approved Applications

• Supporting 4x lumber members in wood-framed construction at 45 deg. skewed angles
• End-of-wall joist connections requiring left-skewed hanger placement
• Exposed framing conditions where concealed flanges provide cleaner aesthetics
• Installations involving joists skewed between 40 deg. and 50 deg. to the left
• Applications using treated lumber where ZMAX corrosion resistance is required

Frequently Asked Questions

What size lumber is the HSULC46Z designed to support?

The HSULC46Z is engineered specifically to support 4x6 lumber members in wood construction framing applications.

Can this hanger accommodate joists that aren't cut at exactly 45 deg.?

Yes. While the hanger itself cannot be modified, it accommodates joists skewed between 40 deg. and 50 deg., providing a degree of installation flexibility around the primary 45 deg. left-skew angle.

Is this hanger suitable for exposed or finish-quality framing where appearance matters?

Yes. The concealed header flanges hide the top flange connection within the header, delivering cleaner visible lines in exposed framing conditions. This makes the HSULC46Z a strong choice for architectural and finish-quality framing applications where aesthetics are a priority.

Are web stiffeners required when installing the HSULC46Z?

No. Web stiffeners are not required in standard installations because the hanger's U-shaped design encapsulates the top flange of the joist, eliminating that need.