Product Description
The Simpson MIT1.81/16 MIT Galvanized Top-Flange Joist Hanger for 1-3/4 in. x 16 in. Engineered Wood is a purpose-built structural connector from Simpson designed to support 90 deg. connections of I-joists to headers with maximum down-load capacity and a minimum number of fasteners. Featuring a Funnel Flange design for easier member placement and positive-angle nailing (PAN) technology specifically engineered for I-joists, this top-flange hanger delivers a reliable, cost-effective solution for engineered wood framing applications where performance and installation efficiency matter.
Key Features
- Positive-angle nailing (PAN) minimizes splitting of the flanges while permitting time-saving nailing from a better angle - protects I-joist flange integrity during installation and speeds up the nailing process for the installer.
- Nail hole material is not removed with positive-angle nailing - preserves the structural continuity of the connector, maintaining full load-path performance at each fastener point.
- Optional triangle nail holes for increased uplift capacity - gives builders flexibility to upgrade uplift resistance where required, using properly-secured web stiffeners alongside the optional nailing pattern.
- Funnel Flange design for easier member placement - allows the hanger to be installed before the joist is set, simplifying positioning and reducing handling time on the jobsite.
- Optional fastening with PAT for steel applications and steel header connections - extends the hanger's versatility beyond wood framing to accommodate steel header conditions without requiring a different connector.
- Cost-effective alternative to welded hangers for standard 90 deg. connections - delivers comparable structural performance for typical I-joist-to-header applications at a lower cost than fabricated welded options.
- Made from 16-gauge steel with a G90 zinc galvanized finish - provides a sturdy, corrosion-resistant connector suited for applications where moisture exposure is a concern.
Why This Product
- Engineered specifically for I-joist framing - the PAN feature and Funnel Flange design are purpose-built for engineered wood members, reducing the risk of flange splitting and simplifying placement compared to hangers designed for dimensional lumber.
- Pre-installation design saves time on site - because this top-flange hanger installs before the joist is placed, framing crews can set and secure the connector in sequence, keeping the workflow efficient without awkward in-place fitting.
- Built-in upgrade path for demanding load conditions - the optional triangle nail holes allow uplift capacity to be increased on the same connector, meaning you are not locked into a single performance level when project requirements change.
- Durable G90 galvanized finish for long-term protection - the zinc galvanized coating adds a meaningful layer of corrosion resistance, helping the connector hold up in framing environments where moisture or humidity may be present over the life of the structure.
Specifications
- MPN: MIT1.81/16
- Member Size: 1-3/4 in. x 16 in.
- Width: 1-13/16 in.
- Height: 16 in.
- Seat Depth: 2-1/2 in.
- Top Flange: 2-5/16 in.
- Gauge: 16
- Coating/Finish: Zinc Galvanized, G90
- Country of Origin: United States
- Installation Fasteners: 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 (sold separately)
Options
- Contact us for Configurable Options and Special orders
Note: Product dimensions may differ from picture. Please see the item description above for specifications.
Frequently Asked Questions
What type of joist is this hanger designed for?
The Simpson MIT1.81/16 is designed to support 90 deg. connections of I-joists to headers. It is specifically engineered for use with engineered wood members measuring 1-3/4 in. x 16 in., and its positive-angle nailing (PAN) feature is specifically created for I-joists to minimize splitting of the flanges.
What fasteners are required to install this joist hanger?
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.
Can this hanger be used with steel headers or steel applications?
Yes. The MIT1.81/16 features optional fastening with PAT for steel applications and steel header connections, providing added versatility beyond standard wood framing.
How is additional uplift capacity achieved with this hanger?
Optional triangle nail holes may be used for increased uplift capacity. However, optional uplift nailing requires the addition of properly-secured web stiffeners to ensure structural integrity.
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FAQs
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