The Simpson Double 2x10 Concealed Flange Joist Hanger Skewed Left ZMAX HSULC210-2Z is a heavy-duty, 45 deg. skewed U-shaped hanger engineered by Simpson to support double 2x10 framing members at precise left-skewed angles in wood construction. Its concealed header flanges keep structural connections out of sight in exposed framing conditions, while the ZMAX coating delivers enhanced corrosion resistance for long-term performance. Built for both residential and light commercial applications, this hanger is purpose-designed for end-of-wall joist connections and angular framing situations where a clean finished appearance and structural reliability must coexist.

Key Features

• 45 deg. Left Skew with 40 deg. - 50 deg. Tolerance - Accommodates real-world framing variation around the primary design angle, reducing the risk of costly adjustments on the job site.
• Concealed Flange Design - Header flanges remain hidden behind the framing member, delivering cleaner visible lines in exposed construction where appearance matters.
• Heavy U-Shape Construction in 14-Gauge Steel - Provides the structural rigidity needed for demanding double 2x10 joist applications without the need for additional web stiffeners.
• ZMAX Coating - Offers elevated corrosion resistance compared to standard galvanized finishes, making this hanger well suited for treated lumber and moisture-prone environments.
• A2 Acute Flange Turned In - Specifically configured for end-of-wall joist connections where the acute flange orientation is required, eliminating the need for field modification.
• Compatible with Multiple Fastener Types - Accepts both Strong-Drive SD Connector screws and standard nails, giving installers flexibility to work with the fasteners already on hand.

Why This Product

• Purpose-built for skewed double joist connections - Rather than adapting a standard hanger, this product is specifically designed for 45 deg. left-skewed double 2x10 framing, meaning the fit is precise and the load path is optimized from the start.
• Concealed flanges serve both structure and aesthetics - The concealed flange design handles the structural load while keeping the connection visually clean, making it a practical choice for exposed framing conditions where standard hangers would be unsightly.
• ZMAX coating for durability in demanding conditions - The enhanced corrosion-resistant finish extends the service life of the connection, particularly in applications involving pressure-treated lumber or higher-moisture environments.
• No web stiffeners required - Because the hanger encapsulates the top flange of the joist, additional blocking or stiffening is not needed, simplifying installation and reducing material and labor costs.

Specifications

• Manufacturer Part Number (MPN): HSULC210-2Z
• Model Number: HSULC210-2Z
• Skew Direction: Left (45 deg.)
• Joist Size: Double 2 x 10
• Gauge: 14
• Height: 8-11/16 in.
• Coating / Material: ZMAX
• Hanger Type: Concealed Flange, Heavy U-Shape
• Country of Origin: United States

Approved Applications

• Supporting double 2x10 framing members in wood construction at a 45 deg. left-skewed angle
• End-of-wall joist connections where the A2 acute flange turned in is required
• Exposed framing conditions where concealed flanges provide cleaner visible lines
• Installations requiring angular accommodation within a 40 deg. - 50 deg. skew range
• Residential and light commercial framing applications requiring heavy-duty hanger support

Installation Information

• Required Fasteners: #9 x 2-1/2" Strong-Drive SD Connector screws OR 0.162" x 3-1/2" Nails & 0.162" x 2-1/2" Nails
• The joist end may be square cut or bevel cut
• Fill all round and obround nail holes with specified fasteners to achieve table loads
• Where noted, triangle holes in the joist flange may be filled for additional uplift capacity

Frequently Asked Questions

What skew angle does the HSULC210-2Z support?

The HSULC210-2Z is designed for a 45 deg. left-skewed installation. It will accommodate joists skewed between 40 deg. and 50 deg., providing a degree of flexibility around the primary 45 deg. design angle.

Are web stiffeners required when using this hanger?

No. Because this hanger encapsulates the top flange of the joist, web stiffeners are not required for a standard installation.

Can this hanger be modified in the field?

No. These hangers cannot be modified. They are engineered to precise specifications and must be installed as manufactured to maintain their rated performance.

What fasteners are required for installation?

Installation requires either