The Simpson HTP37Z Heavy Tie Plate is a 16-gauge steel structural connector from Simpson Strong-Tie built to transfer tension loads across a wide assortment of connections and splices. Whether you are reinforcing framing joints, completing splice connections between lumber members, or tackling heavy-duty structural repairs, this tie plate delivers the strength and durability the job demands. Its ZMAX galvanized coating makes it a reliable choice for exterior framing and pressure-treated lumber applications where long-term corrosion resistance is critical.

Key Features

• Heavy-duty 16-gauge steel construction - provides the structural strength needed for demanding connections and splices where standard hardware falls short
• Designed to transfer tension loads across a wide assortment of applications - gives builders and contractors a single versatile solution for multiple framing and splice scenarios
• Staggered fastener pattern - helps minimize wood splitting during installation so fasteners seat securely without damaging the lumber
• ZMAX galvanization - offers extra corrosion resistance specifically suited for exterior framing and pressure-treated lumber, extending the service life of the connection
• 3 in. width by 7 in. length profile - sized to bridge structural joints with a broad bearing surface, distributing load effectively across connected members
• Compatible with 10d common nails or #9 x 1-1/2 in. Strong-Drive SD screws - works with widely available fastener options so installation fits seamlessly into standard workflows

Why This Product

• Built for tough exterior and treated-wood conditions - the ZMAX galvanized finish goes beyond standard galvanization to resist corrosion in the harsh environments where pressure-treated lumber is typically used, protecting the structural integrity of the connection over time
• Versatile enough to handle a wide range of structural tasks - from end-to-end splice connections to multi-member framing assemblies, this heavy tie plate adapts to the connection type rather than limiting you to a single application
• Installer-friendly design reduces on-site problems - the staggered fastener pattern actively works to prevent wood splitting, saving time and reducing material waste during installation
• Trusted Simpson Strong-Tie engineering behind every plate - Simpson Strong-Tie is a recognized name in structural connectors, and the HTP37Z reflects that commitment to reliable load transfer and consistent product performance

Specifications

• Model Number: HTP37Z
• Width: 3 in.
• Length: 7 in.
• Gauge: 16
• Coating: ZMAX
• Finish: ZMAX
• Country of Origin: United States
• Installation Fasteners: Install with 10d common nails or #9 x 1-1/2 in. Strong-Drive SD screws (sold separately)

Approved Applications

• Connecting two lumber members end-to-end (splice connections)
• Attaching multiple framing members together where extra strength is needed
• Exterior framing connections requiring corrosion-resistant hardware
• Applications involving pressure-treated lumber
• Tension load transfer across a wide assortment of structural connections

Frequently Asked Questions

What fasteners should be used to install the HTP37Z?

Install with 10d common nails or #9 x 1-1/2 in. Strong-Drive SD screws for proper load performance.

Why does the HTP37Z feature a staggered fastener pattern?

The staggered fastener pattern is specifically designed to help minimize wood splitting during installation, making it easier to fasten securely without damaging the lumber.

Is the HTP37Z suitable for use with pressure-treated lumber?

Yes. The ZMAX galvanization coating offers extra corrosion resistance, making the HTP37Z well suited for both exterior and treated-wood applications.

What gauge steel is the HTP37Z made from?

The HTP37Z is made from 16-gauge steel, providing the heavy-duty strength needed for a variety of structural connections and splices.

Related Products

• Nails 0.148" x 1-1/2"
• #9 x 1 1/2"