Product Description
The Simpson HIT424 Heavy Top-Flange I-Joist Hanger by Simpson is built for standard 90 deg. connections of engineered wood I-joists to headers, delivering a structurally sound and cost-effective alternative to welded hangers. Sized specifically for 3-1/2 in. x 24 in. I-joists, this heavy top-flange hanger is formed from 16-gauge steel and features positive-angle nailing (PAN) - a nailing method specifically created for I-joists to minimize splitting during installation. Extra triangle holes provide capacity for higher uplift loads, making this hanger well suited for demanding framing applications where both speed and structural integrity matter.
Key Features
- Positive-angle nailing (PAN) - drives nails at an angle specifically designed for I-joists, minimizing splitting of engineered wood members and speeding up installation
- Two face nails for higher uplift - extra triangle holes allow additional fastening points, giving the connection greater resistance to uplift forces in demanding structural conditions
- Top-flange design for 3-1/2 in. x 24 in. I-joists - seats the joist securely with a 3-9/16 in. seat width, ensuring a precise, stable fit for engineered wood framing members
- 16-gauge steel construction - provides the heavy-duty strength required for load-bearing joist connections without the added cost of welded alternatives
- Zinc galvanized finish (G90) - offers enhanced corrosion resistance, helping the hanger hold up in moisture-prone framing environments over the long term
- Cost-effective vs. welded hangers - delivers reliable 90 deg. header-to-joist connections at a lower cost than custom-welded options, without sacrificing structural performance
Why This Product
- Engineered specifically for I-joists - the PAN nailing feature is purpose-built to work with engineered wood, reducing the risk of splitting that standard hangers can cause, so installers get a cleaner, faster connection on every joist
- Heavy-duty uplift performance in a standard hanger format - the combination of two face nails and extra triangle holes means this top-flange hanger handles higher uplift loads without requiring an upgraded or specialty connector
- A practical, code-friendly alternative to welded connections - field-installed with standard nails, this hanger eliminates the cost and lead time associated with welded hangers while still meeting the structural demands of 90 deg. I-joist-to-header framing
- G90 galvanized coating for lasting durability - the zinc galvanized finish adds a meaningful layer of corrosion protection, making this hanger a dependable choice for framing projects where moisture exposure is a concern
Specifications
- MPN: HIT424
- Member Size: 3-1/2 x 24
- Seat Width (W): 3-9/16 in.
- Height (H): 24 in.
- Base (B): 3 in.
- Gauge: 16
- Coating: Zinc Galvanized, G90
- Finish: Zinc Galvanized, G90
- Install With: Install with 0.162 in. x 3-1/2 in. nails in the header and 0.148 in. x 1-1/2 in. nails in the joist
- Country of Origin: United States
Note: Product dimensions and/or nail holes may differ from picture. Please see item description for specifications.
Frequently Asked Questions
What joist size is the HIT424 designed to fit?
The HIT424 is designed for I-joists with an actual joist size of 3-1/2 in. x 24 in. and has a seat width of 3-9/16 in.
What type of connection does the HIT424 support?
The HIT424 is designed for standard 90 deg. connections of I-joists to headers, providing a reliable and cost-effective alternative to welded hangers.
What nails should be used to install the HIT424?
Install with 0.162 in. x 3-1/2 in. nails in the header and 0.148 in. x 1-1/2 in. nails in the joist.
What is positive-angle nailing (PAN) and why does it matter for I-joists?
Positive-angle nailing (PAN) is a nailing method specifically created for I-joists that drives nails at an angle designed to minimize splitting of the joist material, making installation faster and safer for engineered wood members.
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