The Simpson Strong-Tie HSULC410Z is a heavy-duty, 45 deg.-skewed concealed flange joist hanger engineered to support 4x members in wood-frame construction. Skewed left at 45 deg., this 14-gauge ZMAX-coated hanger features a distinctive heavy U-shaped design with concealed header flanges that deliver cleaner, more refined visible lines in exposed architectural conditions. Measuring 81/2 inches in height and sized specifically for 4 x 10 joist members, the HSULC410Z is the ideal solution for angled framing connections where both structural integrity and finished appearance matter. Manufactured in the United States, this hanger is built to meet the demands of professional framers and contractors working on complex structural connections.

Key Features

• 45 deg. Skewed Left Design: Purpose-built for left-skewed joist connections, mirroring the HSURC (skewed right) for complete installation flexibility
• Concealed Header Flanges: Provides cleaner visible lines in exposed conditions, ideal for aesthetic architectural applications
• A2 (Acute) Flange Turned In: Designed to accommodate end-of-wall installation with precision
• Encapsulates Top Flange of Joist: No web stiffeners are required for standard installation, simplifying the build process
• Obround Nail Holes on Acute Side: Allows nails to be easily installed parallel to the joist for straightforward fastening
• Flexible Joist Cut Compatibility: Accommodates a 40 deg.- to 50 deg.-skewed joist; joist end may be square cut or bevel cut
• ZMAX Coating: Advanced zinc coating for enhanced corrosion resistance in demanding environments
• Heavy 14-Gauge Steel Construction: Delivers robust load-carrying capacity for structural framing applications
• Cannot Be Modified: Engineered to precise tolerances; must be used as manufactured for rated performance

Specifications

• Model Number: HSULC410Z
• Skew Direction: Left (45 deg.)
• Joist Size: 4 x 10
• Gauge: 14
• Height: 81/2 in.
• Coating / Material: ZMAX
• Hanger Style: Concealed Flange, Heavy U-Shape
• Skew Range Accommodated: 40 deg. to 50 deg.
• Country of Origin: United States

Approved Applications

• Angled joist-to-header connections in wood-frame construction requiring a 45 deg. left skew
• Support of 4x structural members at skewed framing angles
• End-of-wall installations where the A2 acute flange turned-in design is required
• Exposed framing conditions where concealed flanges deliver a cleaner finished appearance
• Applications requiring joist connections within a 40 deg.- to 50 deg.-skew range
• Residential and commercial wood-frame structural framing projects

Installation Information

Proper fasteners are required for rated load performance. Use #9 x 21/2" Strong-Drive SD Connector screws OR 0.162" x 31/2" nails. Fill all round and obround nail holes with the specified fasteners to achieve 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. These hangers cannot be modified but will accommodate a 40 deg.- to 50 deg.-skewed joist.

Frequently Asked Questions

What size joist member is the HSULC410Z designed to support?

The HSULC410Z is sized specifically to support 4 x 10 joist members in wood-frame construction.

What angle of skew does this hanger accommodate, and can the joist end be bevel cut?

This hanger is purpose-built for a 45 deg. left-skewed connection and accommodates joist ends cut anywhere from 40 deg. to 50 deg. skew. The joist end may be either square cut or bevel cut, providing flexibility during installation.

What is the difference between the HSULC and the HSURC?

The HSULC is skewed left at 45 deg., while the HSURC is skewed right at 45 deg.. The two hangers mirror each other, offering complete installation flexibility for angled framing connections on either side.

Why is the concealed flange design beneficial, and are web stiffeners required?

The concealed header flanges keep the hanger's visible lines clean and refined, making the HSULC410Z well suited for exposed architectural conditions where appearance matters. No web stiffeners are required for standard installation, which simplifies the build process.