The Simpson MIT4.12/11.88 Top-Flange Joist Hanger is a precision-engineered structural connector from Simpson designed to support 90 deg. connections of I-joists to headers in engineered wood framing applications. Installed before the joist is set in place, this top-flange hanger is built to deliver maximum down-load capacity while requiring a minimum number of fasteners - making it a reliable and cost-effective alternative to welded hangers. Its Funnel Flange design simplifies member placement, and its positive-angle nailing technology is specifically engineered to protect I-joist flanges during installation.

Key Features

• Positive-angle nailing (PAN) minimizes splitting of the flanges while permitting time-saving nailing from a better angle - lets installers drive fasteners more efficiently without compromising the structural integrity of the I-joist flange.
• Nail hole material is not removed with positive-angle nailing - preserves the full strength of the connector at each fastener point, maintaining load performance over the life of the connection.
• Optional triangle nail holes for increased uplift capacity - provides flexibility to meet higher uplift requirements when needed, with properly-secured web stiffeners added as required.
• Cost-effective solution for standard 90 deg. connections - delivers equivalent performance to welded hangers at a lower installed cost, making it a practical choice for production framing and engineered wood applications alike.
• Optional fastening with PAT for steel applications/header - gives contractors the flexibility to use this hanger in steel header applications without switching to a different connector.
• Made from 16-gauge steel with a Zinc Galvanized G90 finish - provides the structural rigidity and corrosion resistance needed for demanding framing environments, including exposure to treated lumber.
• Top-flange design installed before joist placement - streamlines the framing sequence, reducing the need for repositioning or adjustment once structural members are set.

Why This Product

• Built specifically for engineered wood I-joists - the Funnel Flange design and positive-angle nailing work together to make placement and fastening faster and more accurate, reducing the risk of flange splitting that standard hangers can cause in engineered lumber.
• Handles maximum down loads with fewer fasteners - this top-flange hanger is engineered to carry heavy structural loads while keeping fastener counts low, which saves time on the job without sacrificing connection strength.
• Versatile enough for both wood and steel header applications - with optional PAT fastening for steel headers, this single connector adapts to mixed-material framing conditions, eliminating the need to source separate hardware for different header types.
• G90 galvanized coating adds long-term durability - the zinc galvanized finish provides extra corrosion resistance, supporting the connector's performance in conditions where moisture or treated wood could degrade lesser-coated hardware over time.

Specifications

• Model Number: MIT4.12/11.88
• Member Size: 4 x 11-7/8
• Width: 4-1/8 in.
• Height: 11-7/8 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.