The Simpson MIT359.5-2 Top-Flange Joist Hanger for Double 2-5/16 in. x 9-1/2 in. Engineered Wood from Simpson is purpose-built to support 90 deg. connections of I-joists to headers, delivering maximum downward load capacity while requiring a minimum number of fasteners. The Funnel Flange design simplifies member placement before the joist is set, and positive-angle nailing technology addresses the unique structural demands of engineered wood I-joists - making this hanger a practical, code-friendly choice for residential and commercial framing applications alike.

Key Features

• Positive-angle nailing (PAN) minimizes splitting of the flanges while permitting time-saving nailing from a better angle - protects the structural integrity of I-joist flanges and speeds up installation by allowing nailing from a more accessible position.
• Nail hole material is not removed with positive-angle nailing - preserves flange strength at every connection point, reducing the risk of long-term weakening in engineered wood members.
• Optional triangle nail holes for increased uplift capacity - gives builders flexibility to meet higher uplift requirements on the jobsite; note that optional uplift nailing requires the addition of properly-secured web stiffeners.
• Cost-effective solution for standard 90 deg. connections compared to welded hangers - achieves comparable performance without the added cost or lead time of custom-welded alternatives.
• Optional fastening with PAT for steel applications/header - extends compatibility to steel header applications, broadening the range of framing assemblies this hanger can serve.
• Constructed from 16-gauge steel - provides the rigidity and load-bearing capacity expected in structural connector applications for engineered wood framing.
• Zinc Galvanized, G90 coating - adds a layer of corrosion resistance suited for interior framing environments where long-term durability matters.

Why This Product

• Engineered specifically for I-joist framing - unlike general-purpose joist hangers, this connector is designed from the ground up for the unique geometry and splitting sensitivity of engineered wood I-joists, so builders get a proper fit and reliable performance without field modifications.
• Top-flange installation before joist placement speeds up the framing sequence - the hanger is installed on the header first, and the Funnel Flange guides the joist into position, reducing fumbling and improving accuracy when setting doubled members.
• Fewer fasteners needed to achieve maximum downward load - the MIT design is optimized to deliver high load capacity with a minimum fastener count, cutting both hardware costs and installation time on multi-joist projects.
• Dual-application versatility with PAT compatibility - optional PAT fastening means the same hanger can be used across wood and steel header assemblies, reducing the number of connector SKUs a crew needs to carry to the jobsite.

Specifications

• MPN: MIT359.5-2
• Member Size: Double 2-5/16 in. x 9-1/2 in.
• Width: 4-3/4 in.
• Height: 9-1/2 in.
• Seat Depth: 2-1/2 in.
• Top Flange: 2-5/16 in.
• Gauge: 16
• Coating/Finish: Zinc Galvanized, G90
• 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)
• Country of Origin: United States

Options

• Contact us for Configurable Options and Special orders

Note: Product dimensions may differ from picture. Please see the item description above for specifications.