The Simpson MIT4.28/14 Top-Flange Joist Hanger for 4-1/8 in. x 14 in. Engineered Wood from Simpson is purpose-built to support 90 deg. connections of I-joists to headers, delivering maximum down loads while requiring a minimum number of fasteners. Designed for installation before the joist is placed, this top-flange hanger features a Funnel Flange design for easier member placement and positive-angle nailing specifically engineered for I-joists - making it a practical, cost-effective alternative to welded hangers in standard structural framing applications.

Key Features

• Positive-angle nailing (PAN) with intact nail hole material - nailing from a better angle minimizes flange splitting and speeds up installation without compromising the hanger's structural integrity, since the nail hole material is not removed.
• Optional triangle nail holes for uplift capacity - provides flexibility to increase uplift resistance when project conditions require it; note that optional uplift nailing requires the addition of properly-secured web stiffeners.
• Optional PAT fastening for steel applications - accommodates steel headers, giving builders added versatility across different framing scenarios without needing a separate connector.
• Funnel Flange design - guides members into place more easily during installation, reducing positioning time and improving accuracy before fastening.
• 16-gauge steel construction - provides the structural strength needed to handle demanding down-load requirements in engineered wood framing.
• G90 zinc galvanized finish - delivers extra corrosion resistance to help maintain long-term performance in moisture-prone framing environments.
• Cost-effective alternative to welded hangers - supports standard 90 deg. header-to-joist connections with a formed steel connector, reducing material costs without sacrificing load performance.

Why This Product

• Engineered specifically for I-joist framing - the combination of positive-angle nailing and Funnel Flange design addresses the unique demands of engineered lumber connections, reducing the risk of splitting and simplifying placement in ways that generic hangers do not.
• Built-in versatility for multiple header types - with optional PAT fastening available for steel headers, this top-flange hanger adapts to both wood and steel structural applications using a single connector.
• Corrosion-resistant finish for lasting durability - the G90 zinc galvanized coating adds a meaningful layer of protection, making this hanger a reliable choice for framing projects where moisture exposure is a concern.
• Fewer fasteners, faster installation - the hanger's design maximizes down-load capacity while minimizing the number of fasteners required, helping reduce both labor time and hardware costs on the job site.

Specifications

• Model Number: MIT4.28/14
• Member Size: 4-1/8 in. x 14 in.
• Gauge: 16
• Width: 4-9/32 in.
• Height: 14 in.
• Seat Depth: 2-1/2 in.
• Top Flange: 2-5/16 in.
• Coating/Finish: Zinc Galvanized, G90
• Installation: 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

Frequently Asked Questions

What type of connection is the MIT4.28/14 designed to support?

The MIT4.28/14 is designed to support 90 deg. connections of I-joists to headers, making it a reliable and cost-effective alternative to welded hangers for standard framing applications.

What is positive-angle nailing (PAN) and why does it matter?

Positive-angle nailing (PAN) is a feature specifically created for I-joists that minimizes splitting of the flanges while allowing nailing from a better angle to save time. Importantly, the nail hole material is not removed with PAN, preserving the structural integrity of the hanger.

What fasteners should be used to install the MIT4.28/14?

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 the MIT4.28/14 be used with steel headers?

Yes. The MIT4.28/14 features optional fastening with PAT, which accommodates steel applications and steel headers, providing additional flexibility for various construction scenarios.

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